Saturday, August 31, 2019

Reward, Punishment, Prisoner’s Dilemma Essay

Reward and punishment are subcategories of operant conditioning. Rewards are meant to reinforce and increase behavior, while punishments decrease behavior. For example, if you want to potty train your dog, you would reward the dog every time it goes outside to pee by giving them a treat or petting them. On the other hand, if your dog pees indoors on the carpet, you would punish it by yelling or spanking them. Eventually, you will decrease the amount of reward little by little (by only feeding the dog treats every ten times the dog goes outside to pee), and the dog will be potty trained (conditioned). Johnny and Sam have been arrested by the police for robbing the bank and the police put them in separate jail cells. The officer makes an offer to each telling them they may choose to testify against their friend or remain silent. If one confesses and their friend remains silent, the person who confesses will be free while their friend will be sentenced 10 years in prison. If both stay silent, they will be sentenced 6 months in prison while if both confess, both will get five years in jail. The dilemma that the prisoners face is that whatever the other does, each is better off confessing then remaining silent. However, if both confess, the outcome is worse then if they both had remained silent. Pursuing for individual reward would logically lead to both prisoners betraying and getting sentenced a longer time in prison, but instead if the prisoners cooperated, they would both get less time in prison. Through experimenting with this in class, I came to a conclusion that factors such as gender affected the results. Males tended to be more self-interested and were dominated with betrayal while women tended to lean towards staying silent and not risking betraying their friends. The marshmallow experiment was a study done in which a marshmallow was offered to each child for 15 minutes in a room, alone. The child was told that if they could resist eating the marshmallow for 15 minutes, they would be rewarded with another. Most children (two-thirds) were unable to resist the temptation and ate the marshmallow before the 15 minutes was over, even when they knew they’d be treated with another one in just 15 more minutes. This experiment was related with future success– the ability to wait longer correlated with success, since being able to wait showed greater self control, and self control is vital to future success.

Friday, August 30, 2019

Stick Shift vs Automatic

Automatic vs. stick shiftbuying a new car might be a great experience. The question is which one is better, automatic or stick shift? It all depends in what you would prefer and what do you expect from the car. Saving gas, safety and fun are three important reasons to think before making a decision. It’s important that you know your needs are when deciding what type of transmission to get. Do you want a compact car or a larger vehicle? Do you have experience with a stick shift transmission? Will you be driving long distance, road trips, or driving in the city? Do you want to do your own repairs? Why are automatic cars so popular? Since most people drive in the city or in stop and go traffic, automatic cars are more convenient. Even though automatic cars are more expensive and tend to wear down faster. Cars with automatic transmission are a great way to drive around. They do not require much driving skills than stick shift cars. Automatic cars are made comfortable way of driving especially driving in heavy traffic. People who don’t like to drive usually choose an automatic transmission. Automatic transmission require a lot of attention to the engine and keeping up with all of the services such as oil changes, brakes, filters and transmission fluids. Automatic transmission are improving their standards and slowly catching up with to become more fuel efficient. However in some cases vehicles can still be as much as 10% increase in fuel use for an automatic transmission! Overdrive gears can help this problem also. Automatic shifts are not as fun as a stick shift because there not as challenging. On the other hand stick shift transmission saves you hundreds of dollars. Stick shifts are easier to repair and you may be able to do small repairs on your own. Stick shift transmissions have better gas mileage, they also have smaller engines, but they have a lot of power. For example racecar drivers prefer stick shift transmission because it allows them to take control and also the stick shift has more power. Race car drivers use stick shift to take driving to a higher standard. Even though stick shift saves you more money and gives you better gas mileage, if you stayed in the city like New York having a stick shift wouldn’t be your choice. Stick shifts are good for driving over a long stretches are good for road trips, driving in the city with a stick shift causes wear and tear on your clutch. Which sometimes can very expensive to fix, most people say that is just too much work to keep switching gears when you are in stop and go raffic, if you have experience driving a stick shift your transmission can last a lot longer than an automatic transmission. If you are looking for a larger vehicle or an SUV it would be hard to find stick shift switching gears to reduce speed also can save you on break repairs, stick shift transmission require you to be more active with your car and it allows you to pay attention when there is something wrong with your car because you’re not in con trol, so it’s hard for you to pay attention when there is something wrong with your car. How you feel in the car as well as you can handle the car. For a passive driver who is interested in learning how to coordinate the clutch then stick shift has a better handling for you. Stick shift has a lot of different gears and speed which require a stronger set of hands to control the wheel while driving. The automatic has normal handling on the wheel even when going at a faster speed an automatic can drive itself without the need to shift from one gear to another no matter how fast you go. The stick shift transmission requires you to learn to shift between one to five different gears. The transmissions are built differently when comparing an automatic to a stick shift transmission. With a stick shift you have to switch gears while you’re driving. The difference between an automatic or stick shift transmission, both come with different prices. When you are putting on an automatic transmission can range from a few hundred dollars cheaper than a stick shift transmission. Stick shift transmission is preferred for traditional racing. Where quick gear changes are required to exit turns quickly. Automatic transmission could not keep up with a skilled driver using a stick shift automatic transmission are preferred amongst the common drivers because of its ease of use a manual transmission requires coordination between the clutch throttle, and shifting of gears to provide a smooth ride and not damage the transmission. This decision is yours it’s your personal preference on what kind of transmission you would want to drive daily. I prefer driving an automatic car because it is much easier and comfortable for me. I live in a small town and I drive long distance to work and automatic always have been my favorite. I never wanted to learn how to drive a stick shift car even though it saves more on gas. I like to be able to relax when I drive. A stick shift requires too much, you have to switch gears constantly and it’s difficult in lots of traffic. Automatic vs. stick shift it’s your decision cars are made for driving. The choice is yours.

Thursday, August 29, 2019

A Look at the Idea of Equity as Per the Civil Law System

A Look at the Idea of Equity as Per the Civil Law System In the English common law system equity is the principle which governs the legal system. Equity in general happens to be nothing but a basic set of rules or legal principles and maxims which possess the power and legitimacy to override the law in question. This is the system which has given the civil legal system all its limbs and extensions. The civil law legal system basically flows from equity. It is said rather believed and proved beyond any dispute that the principle of equity on the whole alleviates the severity that exists in the common law system and overshadows it . It allows the courts to apply their prudence and relate fairness in unity with the natural law system. In reality, contemporary equity is restricted by procedural and substantive system. English legal critiques lean to spot on technological features of equity. In the case of historical criticism the critiques state that the equity was lacking of the prompted rule in the initial stage. Lord Chancellor seldom arbit rated in the major features of the equity in according to his principles . Various critics state that the equity must be flexible in nature. This paper attempts to explore the theory of flexibility in the equity principle. Along with that this paper attempts to explore the effect of growth and development in the principle of equity in the modern aspect. DEVELOPMENT OF THE CONCEPT OF EQUITY: That court order provide him the written privilege to re-admission to his own territory and recognized this privilege in the defense of the violation of his right of property of his land. In the year of 1253, to avoid judges from discovering fresh writs, legislature stated that the authority to concern writs would after that be moved to judges merely one writ at a single phrase of time, in a writ for privilege wrap up recognized as a outline of act. As a result of deficiency in a legal cure, the only alternative of plaintiff could be pleading to the King . So, as a result of it, populace started pleading to the King for reprieve against unjust court decisions, and as the community of petitioners speedily developed, so the King hand over the job of trial those appeals to Lord Chancellor . As the premature stage Chancellors had short of official legal guidance and produced small observance for precedent, their conclusions were over and over again widely miscellaneous. In near about the year of 1529, an advocate named as Sir Thomas More, was selected in the position for Chancellor which makes the commencement of an innovative era. The question put forth primarily concerned its worth and the certainty it possessed. While on one hand, one chancellor could have a long foot and the other could have a short one while in the other instance, the third one could have yet another different measure of it. The problem would be that all of it would qualify to be a similar thing in the conscience of a chancellor. With the development of the law of equity, it saw a rising conflict and rivalry with the common law principles. The parties to a dispute might indulge in â€Å"litigation shopping† and thus would look for an equitable restraint that shall impose a prohibition on the enforcement of the orders of the common law. The punishment that was imposed for not having obeyed the equitable â€Å"common injunction† and enforcement options that was given by the judgment of the common law courts amounted to an imprisonment . Sir Edward Coke, who happened to be the Chief Justice of the King’s Bench, initiated the system in which the writ of habeas corpus began to be issued which demanded that those offenders who were imprisoned for having made contempt of the chancery orders would be made to go on release. This difficulty that was ongoing reached a highest threshold in the case of Earl of Oxford (1615) where the decision that was delivered by Chief Justice Coke, was wrongfully obtained by commission of a fraud. Lord Ellesmere, who was the Lord Chancellor, passed a linked injunction from the Court of Chancery which expressly imposed a prohibition on the common law order from being enforced. The two conflicting courts became stuck up in a standoff and subsequently, the matter was referred to Sir Francis Bacon who happened to be the Attorney General. Sir Francis Bacon referred to seek the authority of King James I and under such authority, he upheld that the common injunction can be granted and it was also concluded by him that in case if any conflict lies between common law and equity, what would remain in existence is equity . DEVELOPMENT OF MODERN EQUITY: Post 1473, the legal system witnessed a development of the Chancery system where the rights of the parties were determined by the Courts based on its own issued decrees and actions. Gradually problems started arising with the different mode of action of the chancery system and based upon situations when the decisions came directly under conflict with the prevalent system under the common law . The process in the Court was not related to the issue of writs per se but was concerned with the putting forth of a petition that was under the requirement of the fact that the complaint that is the subpoena should be given attention but at the same time, there should be ample room of prevention that should be provided to prevent any action under common law and at the same time, prevent from issuing any kinds of injunctions . Thomas Moore has advocated for the proposition that injunctions or any kinds of restraints should not be issued in case if the judges who occupy the seats in the common la w courts would resolve with the harsh reality of the system but at the same time, if they fail to agree and conjointly decide on a single issue in a situation when the systems under existence were under the fate of destiny to collide and concur. In the year 1617, the Chief Justice of the King’s Bench was Sir Edward Coke. The Chief Justice put forward complain to the then king James I who gave an affirmation to the rights of the chancellor which eventually gave development to the equity jurisdiction. Settled principled were subsequently developed by the Chancellors who succeeded. The most notable figures in this development were Lord Nottingham who is popularly referred to as the father, Lord Hardwicke who happened to be the developer of the principles that were settled and Lord Eldon who is known as the consolidator. There was a massive dissatisfaction that was caused in the Chancery. What was the most attributable cause for this discontent in the Chancery was that there was a buffer increase of workload and the administration happened to be highly ineffective . This ineffectiveness came in association with the fee structure. This entire list of exhaustive causes resulted in the dissatisfaction there in the Chancery. In order to resolve this dispute, more number of appointments with regard to judges was made and a harmonious situation was intended to achieve . The remedies that were assimilated with the harmonious construction between the provisions of the common law and equity facilitated this regard. The resulting legislations in this regard were the Common Law Procedure Act 1854 and Chancery Law Amendment Act 1858. It was eventually felt that that time has been attained which immediately demands for further reform. THE FLEXIBILITY IN THE THEORY OF EQUITY: Generally it is presumed that equity principle is an opposite or sometime complementary to the common law legal system . Whenever the law is strict the equity provision remains flexible on that particular matter. This principle advocates for the discretionary of the court of judges rather depending on only to the rules and law. This principle provides for justice rather those establishing mere rights of the parties. In the feminist jurisprudence the profounder claims that the law of equity advocates for the justice to the women by applying the rule of flexibility. Though, many people argue that the proper flexibility in terms of equity is an imaginary thing. Lord Denning advocates that there is a need for a new Equity. He state that the established law can be changed for the obvious and good reasons and for the requirement of the society. After 50 years of this approach, there were so many modifications are made according to need of the society. The claim of the Lord Denning is consi dered to be one of the most modern approaches to the concept of equity . FEMINISM IN EQUITY: Feminism in equity and feminism in gender are the two classifications of feminism the definition of which was for the first time put forward by the eminent scholar Christina Hoff Sommers in herself authored book â€Å"Who Stole Feminism?† She went on to give the description of feminism in equity as possessing the objective of ideology of ascertaining equal and legitimate rights as conferred under law to both men and women. She went on to define feminism in gender as possessing the intention of combating the challenges put forth under sexism and social structures of patriarchy which come to be addressed in everyday practice associated to society and cultural diversity. Sommers herself very strongly stands for advocating her view which she gives preference of calling feminism in equity and at the same time, she continues to constantly criticise her concept of what continues to be feminism in gender . Sommers gives a description of feminism in equity as an ideology that has its roots deeply implanted in the essence of classical aspects of liberalism that has the specific aim to attain an entirely equal footing as far as the civil and equal rights of women are concerned. Experimental psychologist Steven Pinker gives an exhaustive expansion on what Sommers has stated. he continues to say that feminism in equity is nothing but a simple moral doctrine which has its basic impetus on treating men and women equally. it makes absolutely no commitments that require and give regard to livid and unenclosed issues possessing an empirical nature that exist either in psychology or in biology. As per the views of the researcher, after having analysed, the entire aspects of the existing law, and the various perspectives of the equity, it can be said that in order to have a proper reform on the field of feminism, equity can be totally argued in favour. As far as the different dimensions of feminism are concerned, various researchers witness a significant restructuring associated with the construction and deconstruction of the law. Of course, there are certain exceptions to this feasible option as regarded in Wong’s essay titles â€Å"Property Rights For Home-Sharers: Equity Versus A Legislative Framework†. Another scholarly work which points the underlying exceptions is given in Fehlberg’s study of Sexually Transmitted Debt. RELEVANT CASES ON THE PURPOSES OF DEVELOPMENT: Williams and Glyn’s Bank v. Boland is an important case in this discussion. This is important aspect in the modification of the mortgage industry. In this case for the very first time lenders would have take consideration of a woman at home. But the court of Appeal extended the offered protection to Mrs. Boland. In the later part of the 20th century the position of equity increased and advocates the situation of flexible and adoptable rather than mere technical and rigid. The house of lords focuses on the progress of equity. The equitable principles create more bendable to the urge of the woman and feminism. In the case of Re Roger, Lord Denning develop a fresh role for the equitable principle or equity. The increase in home ownership provision, cases of divorce, cohabitation outside the institution of marriage creates the reform in the property law in 1925. The law court applied the law of trust to find out solution in the case of Mrs. Roger. But the Lord Denning was opposing the technical and rigid application of the law of equity. It creates a new development in the case of equity. The justice appealed for the flexibility in the concept of equity. In the case of Rimmer v. Rimmer , Lord Denning declared a new aspect of equity principle regarding the flexibility. The law and judgment provide that the family ownership is the joint ownership between husband and wife. The view of flexibility in the law advocates for the wife’s equitable right in the property. The concept of flexibility approach in the equity carry is forward by Lord Diplock in the case of Gissing v. Gissing . The flexibility principle basically helps to construct he feminism approach to the principle of equity in the modern aspect. The development of this is taken place by different cases. Lord Bridge contributes than women paid less to the house hold because they have less access to the financial stability. Women generally utilize their money to house hold things and on their children as described in the case of Burns v. Burns . In this case the House of Lords admit the injustice to the women in 1990’s regarding the application of equity principle. Justice Harman in 1950 state that equity is assumed not to fulfill the period of child rearing, but in the era of 1952 the situation is changes. In 1952 Lord Denning claim that the equity need a good and fresh approach in the modern era. But the flexibility becomes a myth. It fails to protect the claims and interest of the women. Though the evaluation procedure is still ongoing but it requires more flexibility in to ensure the right of the woman. CONCLUSION: It can be said that it will become totally wrong to say that equity has essentially been a concept under female dominance. The critical study of the law under equity clearly indicates that it has gradually gone through various kinds of changes over the years and has evolved manifold. The development can be said to have been a critical issue and it is something which has always thrived to be on the positive side of the slope. Though, there are certain flaws in the existing system, yet it is also not unknown to us that even the best legal system has flaws in it and considering that in view, it can be said that the existing flaws are negligible. The only requirement at this point of time is that equity needs to be a bit more flexible in those points where the law remains strict and unbent. It also needs to be a bit more discretionary where the law remains obligatory and binds the citizen under its purview. It also needs to be a bit more humane because the main thing with which it is con cerned is doing and imparting â€Å"justice† rather than giving and justifying the ascertainable â€Å"rights†.

Wednesday, August 28, 2019

Les Miserables By Victor Hugo -Social Injustice Essay

Les Miserables By Victor Hugo -Social Injustice - Essay Example These themes are stressed by Hugo’s thoughts and views on politics, religion and justice; this forms a major part of the discourse. Though each of the mentioned themes are evident throughout the novel, they become more clearer on following certain characters who form the spine of the novel. These are, Jean Valjean and Javert, it is through these characters that we witness the extent of social injustice in early France. Social Injustice in Early France Social justice takes many forms; however, this study restricts its analysis to the three forms of social injustice highlighted by Hugo. Hugo in his book Les Miserables brings into focus three areas that require urgent attention, education, criminal justice and the welfare of women. These also happen to constitute a major part of social injustice not only as discussed by Hugo but also as highlighted by different social definitions. A look at France at the time of Hugo’s writing reveals a largely stratified society which was yet to receive the promises and aspirations of those who participated in the French revolution of 1789. It is understood that proper governance which would inevitably translate to social justice was one of the major driving force prior to the French Revolution. Therefore, it was hoped that with the revolution social justice would be achieved. Social justice in this regard referred to equitable distribution of resources, observance of equity in terms of gender and equal employment opportunities. However, close to a century after the revolution this still remained a pipe dream as highlighted in Hugo’s book. French socialists largely blamed capitalism; they argued that capitalism was an immoral system. They looked at capitalism as the reason behind the long working hours, child labor, poverty of working people, unemployment, income inequalities, social injustice and multiple other problems (Pejovich 18). It is these very concerns that form the backdrop of Hugo’s Les Mise rables, he is concerned of the rampant inequality and disregard of human equity. This particular concern is highlighted in the case of Fantine a young energetic woman. She is left to care for her child after the child’s father deserts them; she undergoes immeasurable suffering including a six month jail term for defending her dignity. This is just one instance of injustice against women in the novel; other injustices identified by the French sociologists are rife in Hugo’s book. Child labour is seen in the case of Cosette, Fantine’s daughter who is forced to work by her custodians who still go ahead to demand money for her upkeep. In short, early France was driven by struggles between two main stratifications, the rich and the poor. The rich decided how the poor would lead their lives and provided for systems which completely ignored the rights and privileges of the poor. Most notably, they used law enforcers to continually suppress the poor in a bid to ensure s ubordination. The face of such force in Hugo’s Les Miserables is Javert, Javer was born of a convict father but later denounced both his parents. He chose to work in prison as a guard; at one point he was mandated to guard against a chain gang whose one of the members happened to be Jean Valjean. Javert later on joins the police force, through his new position he is mandated to rid the city off offenders. One of the offenders is Jean Valjean who is apparently a repeat

Tuesday, August 27, 2019

MidTerm Two Term Paper Example | Topics and Well Written Essays - 250 words

MidTerm Two - Term Paper Example Plato on the other side argues that the best rational political order leads to harmony and unity in a society. He says that behaviors of people determine the outcomes of any political endeavor. If dialogue is initiated, then there is the belief that there would be some political order (Kennedy 152). Plato insists that justice is the best character that leads to a political order. Plato’s argument seems to be best since it urges people to prepare and ensure that everything is in order before politics is initiated. On the other hand, Aristotle argues that only the happy and virtuous people can participate in politics. For both ideas of Aristotle and Machiavelli, there is belief in a spectrum of some diverse categories for exercising social development and organization. Both believe that social organization can function as an on-going negotiation of time among the individuals with desperate aims. It can also function as a partnership that aims at persuading common goals (Gross et al.

Monday, August 26, 2019

Human resource management in Marine & Shipping Industry - Research Proposal

Human resource management in Marine & Shipping Industry - - Research Proposal Example ts in world trade balances and through market consolidation which require the implementation of well formulated processes and strategies, more especially in the human resource department. In view of the above facts, human resource management is no longer the simple task it used to be in yester years. With the ever dynamic global environment of today, companies must brace themselves and make changes whenever such needs arise in order to maintain their competitive edge. In fact, instead of waiting for other organizations to set pace, successful companies take charge and make proactive changes that continuously keep the competitor on its toes. Given its nature, the marine shipping is one of the oldest and most internationally diverse industries in the world and includes the famous voyage made by Christopher Columbus in search for a new world (Subhash and Divya, 2007). The shipping industry involves transportation of virtually everything including containers, bulk goods, petroleum products, human beings and special products such as armory. The last 50 years has seen massive expansion in demand of the shipping industry which clearly reflects that how much growth has occurred in the capacity of seaborne trade. This growth has been boosted by growth in technology such as seen in the introduction of gas-carrying capacity and containerization. Organizational structures of shipping companies have changed combined with changes in seafarers’ recruitment strategies. Despite the comparatively fast and amazing changes in the shipping industry, the human resource remains its primary production factor and is still based on steep hierarchical structure of ratings and officers (Subhash and Divya, 2007). Currently, job profiles in the shipping industry are changing faster that it was in the past. This requires the continuous performance of job analysis failure of which can dearly cost the organization. Human resource managers are often faced with the challenge of human resource

Sunday, August 25, 2019

Research Proposal Example | Topics and Well Written Essays - 3750 words - 1

Research Proposal Example This sentiment is supported by Van Belle (2000) who argues that political figures within a government structure are pressured to make socially-relevant decisions within the constant presence of the camera, hence media serving as a force to drive political transparency in decision-making and communications. Without media serving as a medium for educating political thought and providing society members with knowledge regarding the behaviors of political representatives, the public would have inferior knowledge about governance activities and political decision-making. In the early 2000s, after the events of September 11, 2001, political ideology in American society changed as a result of media coverage of the George W. Bush political administration and its efforts to curb the spread of terrorism in the United States. In Western nations, such as the United States, the slaughter of civilians is believed, at the social level, to be barbaric and monstrous (Atawneh, 2009). The acting President Bush led a media-driven campaign to publicize his stance on terrorism which emphasized that these terrorist actors were evil and reprehensible, with this discourse influencing American society members to view Middle Easterns as malevolent and immoral (Graham, Keenan & Dowd, 2004). The President, using media as a forum to spread this politically-motivated ideology, utilized the phrase us versus them, where â€Å"us† was representative of peaceful individuals and â€Å"them† as foreign opponents of democratic lifestyle and peace-loving society (Leuda r & Marsland, 2004). Media coverage of Bush’s ideology toward terrorism influenced American society to adopt his political views related to the terror campaign, giving Bush more social clout which ultimately led to society’s political action to elect Bush for a second term. The media, hence, served as the fundamental influence to change political thought of American citizens, with media-covered political rhetoric

Relationship between Labor Market and Education Essay

Relationship between Labor Market and Education - Essay Example From the above table it is evident that majority of full time workers are those with PhD, masters, bachelors degree and 2 year program. Of those interviewed those with masters' degree and work full time amount to 66.2% while only 43% with high school diploma are working full time. In contrast to this we check the percentage of those that are unemployed; from the table only 5.2% with PhD are unemployed compared to 11.7% of those who have attained high school diploma. There it is evident that employment status will depend on education attainment. Now due to the fact that the T critical value is less than the T calculated value we reject the null hypothesis that the two means are equal therefore we conclude that mean percentage of those employed and have PhD is greater than the mean value of those employed and have attained high school diploma. In the labor market people who have higher educational attainment are paid more than others, for example PhD holders will be paid higher wage rates than bachelors degree holders, in this case we analyze education level and lowest wage willing to accept, the following table summarizes the results: The above table summarizes the percentage of those who are willing to paid 4.35 to 9 according to their education attainment; it is evident that only 1% of PhD holders are willing to be paid 6 dollars while 7.8% of GED holders are willing to be paid 6 dollars. ... Variance 1 = (2.22)2 Variance 2 = (2.47) 2 N1 =2535 N2 = 2535 Tcal = 100.2828 T critical at 95% level of test = 1.9599 Now due to the fact that the T critical value is less than the T calculated value we reject the null hypothesis that the two means are equal therefore we conclude that mean percentage of those employed and have PhD is greater than the mean value of those employed and have attained high school diploma. Education and lowest wage willing to accept: In the labor market people who have higher educational attainment are paid more than others, for example PhD holders will be paid higher wage rates than bachelors degree holders, in this case we analyze education level and lowest wage willing to accept, the following table summarizes the results: High school diploma GED 2-year program Bachelors Degree Masters Degree PhD... 4.35 0.1 0 0.2 0 0 0 4.5 0.4 0.9 0.3 0.1 0 0 4.75 0.2 0.9 0.1 0 0 0 wage 5 5.7 11 3.2 0.9 0.3 1 6 4.4 7.8 3 1 0 1 7 4.3 6 3 1.3 0.8 0 8 2.7 6.3 3.1 2.4 1.8 0 9 1 4.1 1.6 0.5 0.8 0 The above table summarizes the percentage of those who are willing to paid 4.35 to 9 according to their education attainment; it is evident that only 1% of PhD holders are willing to be paid 6 dollars while 7.8% of GED holders are willing to be paid 6 dollars. For this reason therefore it is evident that the cost of labor depends in education attainment. Hypothesis: More high school diploma individuals are willing to be paid 5 dollars than Masters Degree holders Null hypothesis: H0: a = b Alternative hypothesis: Ha: a b Where a high school diploma individuals are willing to be paid 5 and b is masters individual willing to be paid 5 dollars therefore a = 5.7and b = 0.3 Tcal = 2.34057 T critical at 95% level of test =

Saturday, August 24, 2019

History rock and roll Essay Example | Topics and Well Written Essays - 250 words

History rock and roll - Essay Example This was caused by the featuring of catchy grooves, hand-clapping, impulsive body moves and improvisational elements that swept all through. Sly& the Family Stone caught all lively and musical trends, resulting to a blend of Soul, Rock and Funk. The group has not only produce for, but also performed with black and white musicians just like Motown had incorporated white music into black radio stations. Sly and the Family Stone were driven by many cultural influences including Motown Sound among others. Sly had a short peak period, the least among its kind, falling both in value and critically. It was somewhat reported to be caused by rhythmically loose songs (Geels 1429). Brian Wilson postulates of his inspiration to make the record originating from the Beatles â€Å"Rubber Soul†, which presented the peak of his wave. Additionally, he successfully employed the use of inspiration from across to create a brilliant piece of amazing pop- Pet Sounds. Smiley Smile was a masterpiece, following suit like Pet Sounds- a contemporary classical that swept through, following the same

Friday, August 23, 2019

Applications paper Movie Review Example | Topics and Well Written Essays - 1500 words

Applications paper - Movie Review Example As Guy planned revenge, a twist in the ending showed Buddy confessing having had same bullied treatment before he became the manager, and this is his way of motivating Guy to succeed. Plot 2. Smoking Room is a movie about discrimination and culture.(The world of business in movies, 2009). It is about a middle level executive (Ramirez), who got enraged when his U.S. based office ban smoking in the office premises. If anyone wants to smoke, he has to go out of at least 20 ft. from the office premises, sometimes exposed to freezing cold or burning heat of temperatures. Ramirez who claims to have a Spanish descent, believes this rule is discriminating and disregards the acceptability of the Spanish smoking culture. He was alone in his campaign after his colleagues left him in his fight due to office politics, agenda and convenience.(The World of Business in Movies, 2009). Let us first identify the fundamental concepts of organizational behavior. These are individual differences, perception, whole person, motivation, desire for involvement, and human dignity. These concepts are transformed in the four models of organization that are described in the movie. Study looks at the concept of human dignity in â€Å"Swimming with Sharks† and Individual differences thru diversity in â€Å"Smoking Room†. â€Å"Swimming with Sharks† is a movie that reflects an organizational concept of boss-employee relationship that is defined in an autocratic manner. It is a movie shown in 1994 but continues to share its relevance in organizational behavior studies today. Although the movie is done in a comical way, the characters played perfectly the roles in a conflict situation in an organization; one that tries autocratic authority to compel obedience, and an employee-employer relationship based on fear. The movie gives credit to the saying â€Å"the end justifies the means†, wherein the finale of the movie shows the assistant elevated to a higher

Thursday, August 22, 2019

Clothing and Good Physical Health Essay Example for Free

Clothing and Good Physical Health Essay Summer and Spring clothes are worn for Warmth, Comfort and Style. People sometimes wear different types of clothing for Protection, Comfort and Style. To preserve good physical health, clothing protects us from cold temperatures. It can protect us from sunshine or high winds. It can also protect us from the wetness of rain. Throughout history, clothing has protected people from attackers. People need protection from dirt, insects, and other harmful agents in the environment. Some garments protect workers from the specific dangers of their jobs. Hard hats and safety goggles are examples. With winter clothing it is used for the protection of your body. You need to choose your clothing thoughtfully to stay cozy yet still be able to move easily. For Instance, a three layer jacket, a scarf, furred boots and especially a thermal. These are winter garments that you should wear to keep you warm and to keep out the cold. The clothes shouldn’t be too tight or loose reason being tight clothes inhibits free movement, and loose clothes allow the warm air and body heat to escape. We wear clothing that is creatively designed, and we combine garments in artistic ways. Decorations people use still depend on their native culture. For example: body paints, intentional scarring or binding are for adornment. Ideas can change with time. What is beautiful to us one year may not look attractive at all to us a few years later. Clothing can satisfy the psychological need of belonging such as to a profession, social group, association, or country of heritage. It indicates what â€Å"role† you play or what skills you have. One more common type of clothing is Summer clothing. People all over the world especially the Caribbean wears summer clothes all year round. It comes in all sort of style and people also wear summer clothes also very absorbent for style. Most of the clothing is light weighted and also very absorbent. We learn early in life what others expect us to wear. It gives a sense of belonging. Too much conformity can mean a loss of personal individuality. Certain ways of dressing give clues about personality traits (For Example: people who wear very decorative things are usually very sociable). When we choose styles different from out friends, we are expressing our individuality. The least types of clothing are Spring clothing. People mostly wear these types of clothing when winter season is about to finish it can also be worn for comfort. It is lighter in weight than the winter garments. The winter changes so suddenly that you need something not to heavy or light. You need Shoes that ease your feet but protect them from cold or rain. The fabrics are bright and bold in color. Clothing is needed in our everyday life and some can be very expensive.

Wednesday, August 21, 2019

Effect of CR Supplementation on Athletic Performance

Effect of CR Supplementation on Athletic Performance Introduction To succeed in a given sport at any level of competition, athletes must possess specific physiologic, psychologic, and biomechanic traits critical to success in that sport, but they must also receive optimal physical, mental, and biomechanical training to maximise this genetic potential (Williams, Kreider Branch, 1999). However many athletes believe that the combination of genetic traits and optimal training alone are not sufficient to achieve maximum performance, therefore the use of ergogenic aids has become common to improve sports performance beyond the effect of training (Sundgot-Borgen, Berglund Torstveit, 2003). The use of ergogenic aids will allow athletes to gain that competitive advantage over opponents therefore leading to potential success. According to Williams, Kreider Branch, (1999) ergogenic aids are substances or treatments that are theoretically designed to enhance physical power, mental strength or mechanical edge therefore potentially improving athletic performa nce. Given the various demands of team sports such as Soccer, Rugby and Hockey, which require short intermittent bouts of high intensity exercise which are interspersed by low level exercise, it seems feasible the use of ergogenic aids in such sports may enhance and benefit performance to gain that competitive edge over opponents. One ergogenic aid which has become popular among amateur, professional and recreational athletes over recent years is Creatine Monohydrate (Cr). Creatine is a naturally occurring amino acid derivative which is found in skeletal muscle, but is also a normal dietary constituent with a daily requirement of approximately 2 to 3 grams depending on body size (Ostojic, 2001). The majority of creatine in muscles is stored in the form of phosphocreatine (PCr) which serves as an important contributor to energy metabolism during high intensity exercise (Williams, Kreider Branch, 1999). PCr provides the high energy phosphate for adenine diphosphate (ADP) to restore adenine triphosphate (ATP) concentration rapidly via the Cr kinase (CK) reaction (Clarkson, 1996). Hultman, Bergstrom and McLennan-Anderson, (1967) demonstrated that depletion of PCr stores within the muscles can lead to a decline in athletic performance during high intensity exercise, so theoretically increasing PCr stores through Cr supplementation would enhance the ability to maintain high intensity exercise over a prolonged period of time, leading to increases in sporting performance. Ahmun (2005) and Hultman, Soderlund, Timmons, Cederblad, Greenhaff, (1996) demonstrated that the average Cr concentration in human muscle can be increased through Cr supplementation over a 7 day period from 20% pre Cr to 50% post Cr. Since PCr is a substrate for the ATP-PCr energy system which is essential for high intensity exercise of 30 seconds or less it seems logical that the supplementation of Cr would be beneficial to exercise tasks of this duration. Therefore the majority of previous research has focused on bouts of anaerobic performance of To date the effect of Cr supplementation on athletic performance has been widely researched. This includes include positive effects of Cr supplementation over a prolonged period of over 4 weeks which is otherwise known as the maintenance phase (Knehans, Bemben, Bemben and Loftiss, 1998; Larson, Hunter, Trowbridge, Turk, Harbin and Torman, 1998). Also demonstrated have been positive effects of Cr supplementation on exercise performance using a shorter ingestion period known as the loading phase (Stout, Echerson, Noonan, Moore, and Cullen, 1999; Volek, Boetes, Bush, Putukian, Sebastianelli and Kraemer, 1997a). This includes improvements in performance variables such as strength, speed and delaying the onset of fatigue (Okudan and Gokbel, 2004; Volek, Kraemer, Bush, Boetes, Incledon, Clark and Lynch 1997b; Kocak Karli , 2003) Team sports consist of repeated bouts of intermittent high intensity exercise therefore consistently relying on the ATP-PCr energy system which if depleted can have a major factor on performance and the outcome of a game (Ostojic, 2004). One such sport which consists of repeated bouts of high intensity exercise is soccer. Soccer players are required to produce high power outputs and maintain or repeat them with only a few seconds of recovery, (Reilly and Williams, 2003). Such high intensity instances could be the deciding factor of a game, for example sprinting back to make a game saving tackle or sprinting past a defender to the ball to make a shot. One high intensity exercise instance which occurs in a soccer match are bouts of sprinting, which are estimated to consist of 8.1% of a 90 minute match and occur approximately every 90 seconds lasting between two to four seconds in duration (Bangsbo, Norregard Thorso, 1991). Given the fact that there is considerable support for Cr as an ergogenic aid it would be reasonable to suggest that a soccer players sprint performance would benefit from Cr supplementation. However there is minimal research which has looked into the effects of Cr on sprint performance and variables of soccer match play such as agility running, lateral stepping and running backwards( Cox, Mujika, Tumilty and Burke 2002; Ostojic, 2004; Mujika, Padilla, Ibanez, Izquierdo and Gorostiaga, 2000). The aforementioned studies have determined the effects of Cr on elite soccer players, female soccer players and youth soccer players (Ostojic, 2004; Mujika et al., 2000; Smart et al 1998; Cox et al., 2002). However there is no present research that looks into the effects of acute ( Another aspect to consider upon testing the effects of Cr on sprint performance on amateur soccer players is the protocol to be used. Although there have been many protocols which have been designed to measure and simulate soccer performance, plenty of these have failed to adequately simulate the different movement patterns (sprinting, walking, running backwards, lateral stepping) which are involved in a game of soccer (Drust, Reilly and Cable, 2000; Abt, Reaburn, Holmes and Gear, 2003; Thatcher and Batterham, 2004). It seems rational that when assessing components of soccer performance that the protocol that is utilised replicates the different activity patterns and demands of soccer match. If this is not taken into consideration it becomes difficult to determine whether Cr supplementation will have any benefit on soccer performance. Therefore the utilised protocol needs to concisely replicate movement patterns in soccer so that a valid assumption can be made to determine the erogen eity of acute Cr supplementation on sprint performance in amateur soccer players. Thus the purpose of this study is to conduct an investigation that will determine the effect of acute Cr supplementation on sprint performance in Caucasian male amateur soccer players, using a soccer simulation protocol in an accurate, valid and reliable manner with two trials consisting over a 7 day period. Concluding whether or not acute Cr supplementation can be used as an ergogenic aid to improve a footballers sprint performance, therefore recommending to athletes and coaches alike. Literature Review Creatine Monohydrate: Background Creatine monohydrate is one of the most popular sporting supplements in the world today and is used by high school athletes, the elderly, professional and recreational athletes in the hope of improving physical performance (Bemben and Lamont, 2005). It is the most commonly available Cr supplement and the form primarily used in most research studies. Cr monohydrate comes in a number of forms including powder, tablets, gel, liquid, chewing gum and candy (Williams, Kreider and Branch, 1999, p.43). Greenhaff (1997) indicated powdered Cr, ingested with solution to have a quicker absorption rate at raising muscle Cr concentration than using Cr supplementation of a tablet form. Conversely Vuckovich and Michaelis (1999) reported no significant difference in absorption rate between the two different forms. Dosage methods The supplementation dosages of Cr can be broken down into two different phases, otherwise known as the loading phase and maintenance phase. The loading phase that is commonly used in research consists of ingesting daily, 20-30g of Cr in four equal doses of 5-7g dissolved in around 250ml of fluid interspersed throughout the course of the day (preferably morning, noon, afternoon and evening) for a period of 5 to 7 days (Greenhaff, 1997; Kreider, 1997). Hultman et al (1996) utilised a less intense loading method of 3g/day for 28 days and proposed it to be just as effective as the aforementioned loading protocol. However this method places a longer dependency on subjects to comply with the supplementation program, therefore placing more variables into the reliability of results. Following the loading phase, maintenance dosages are considerably lower. Most research investigating the effects of Cr using the maintenance phase, have utilised dosages of 3 to 15g over a 4 to 10 week period (Bemben et al., 2001; Kreider et al., 1998; Stone et al., 1999; Vandenberghe et al., 1997). It is recommended to consume Cr with warm water, as it facilitates the dissolving of the solution and also aid absorption (Harris et al., 1992). It should also be noted that the ingestion of caffeine during Cr supplementation eradicates its potential ergogenic effect (Vandenberghe et al., 1996; Van Leemputte, Vanstapel Hespel, 1997). Vandenberghe et al (1996) demonstrated that a control group that ingested Cr combined with caffeine to have a lessened ergogenic potential compared to a group that ingested Cr without caffein e during repeated bouts of high intensity exercise. Side effects There is no conclusive scientific evidence to suggest that Cr ingestion has any negative side effects utilising the proposed dosage methods ( Larson et al., 1998; Schroder, Terrados Tramullas, 2005). There is further evidence to support this as Kreider et al (1999) found no negative side effects in athletes who had been ingesting Cr for up to 3 years. Poortmans and Francaux (1999) demonstrated similar findings for athletes for taking Cr for up to 5 years. Only undocumented anecdotal reports have reported any adverse negative side effects through Cr supplementation, this includes gastrointestinal distress, muscle cramping and dehydration (Associated press 1997, 1998). Taking dehydration into consideration such anecdotal research can be scrutinised. Oopik, Timpmann and Medijainen, (1995) demonstrated that Cr supplementation increased body mass, while also reporting increases in total body water. Such findings signify that Cr supplementation may prevent dehydration rather than be a cause, due to the fact it can promote water retention. Cr supplementation has been demonstrated to increase body mass by up to 2kg over an acute period of time (Balsom et al., 1995; Becque et al., 1997). This could be recognised as a negative side effect for athletes that compete in weight control sports, as Cr ingestion may impede their ability to make regulated weight in a forthcoming event. This gives a consensus that athletes in such activities need to be made aware that although Cr can promote gains in strength and power, it can increase body mass. Physiology of Soccer Soccer players are frequently required to produce high power outputs and maintain of repeat them with only a few seconds of recovery (Reilly and Thomas, 2003). This includes intermittent bouts of kicking, tackling, turning, sprinting, changing pace and maintaining balance and control of the ball whilst under pressure from an opponent (Wisloff, Helgerud Hoff, 1998). To gain a scientific perspective of the different physiological demands of soccer performance, match and time motion analysis have been utilised (Bangsbo, 1994). This analysis has allowed researchers to determine the overall workload of players during a 90 minute match by calculating total distance covered, and the pattern of activities performed during a game (e.g. sprinting, cruising, walking etc). Movement patterns of Soccer It is estimated that the total distance covered during a 90 minute soccer match varies from 8.7km to 11.5km ( Bangsbo Lindquist, 1992; Ekblom, 1986; Ohashi et al., (1988); Reilly and Thomas, 1976; 1988; Rampini et al., 2007; Wade, 1962). The large variance in distances covered are due in part to the differing styles of play, levels of competition and skill level of the teams that were utilised (Luxbacher, 1997). Reilly (1994) documented the different activity patterns of elite outfield players from the English top division and other major national leagues in Europe and Japan using different methods of match analysis. Results found that a 90 minute match consists of 24% walking, 36% jogging, 20% cruising sub maximally (striding), 11% sprinting, 7% moving backwards and 2% moving in possession of the ball. The categories of sprinting and cruising are defined as high intensity exercise. In terms of distances covered the ratio of low intensity exercise to high intensity exercise during a soccer match is 7 to 1 denoting that the outlay of energy for soccer is predominately aerobic ( Reilly and Thomas, 1976). However the importance for high intensity bouts during soccer match play should not be underestimated. The timing of such a bout could be the defining factor of a game whether in possession of the ball or without the ball. Although work-rate profiles are relatively consistent for players from game to game it is the high intensity exercise which is the most constant feature (Bangsbo, 1994). The number of sprints reported in a soccer game varies greatly from 17 to 62 (Bangsbo et al., 1991; Mohr, Krustrup Bangsbo, 2003). This variance is largely determined by the positional role of the player. Findings by Reilly (1996) demonstrated that midfielders and strikers completed more sprinting bouts than centre backs or full backs therefore relying more on the anaerobic energy system. However if there is not a prolonged recovery period or an individual is not properly conditioned they will not subsequently recovery from high intensity bouts of exercise and fatigue will occur (Reilly, 1996). This is evident as Reilly (1996, p.72) documented that the majority of goals conceded during a soccer match occurred in the final ten minutes of play. A popular theory for this occurrence has been found to be mental fatigue or lapses in concentration from defenders (Reilly, 1996, p.72). However this can theory can be scrutinised as research found that the onset of fatigue in intermittent exercise such as soccer is caused by low muscle glycogen stores (Balsom et al., 1999). Acute Cr supplementation and sprint performance in team sports Athletes in team sports such as soccer, rugby, hockey and American football are required to repeatedly reproduce intermittent bouts of high intensity exercise with minimal recovery. Being able to consistently reproduce such bouts at maximal ability (e.g. sprinting, jumping, running backwards) could be the deciding factor in competition to gain that extra edge of an opponent. During high intensity exercise of an intermittent nature the main contributor of energy is PCr (Williams, Kreider Branch, 1999, p29). Depletion of PCr stores during high intensity exercise has been found to be a factor which has lead to a decline in athletic performance (Hultman, Bergstrom and McLennan-Anderson, 1967). Through the supplementation of Cr, it hypothesised that PCr stores are replenished at a faster rate therefore improving an athletes ability to recover and perform intermittent high intensity bouts of exercise, leading to improved athletic performance (Greenhaff et al, 1993). There have been various studies that have tested this hypothesis by investigating the ergogenic effect of acute Cr supplementation on sprint performance of athletes in team sports (Ahmun et al., 2005; Cornish, Chilibeck Burke, 2006; Izquierdo et al., 2001; Kocak Karli, 2003; Romer et al., 2001; Vandebuerie et al., 1998). However the aforementioned studies have contrasting findings with a quantity of studies finding a significant improvement in sprint performance through Cr supplementation (Izquierdo et al., 2001; Romer et al., 2001; Vandebuerie et al., 1998). On the contrary other studies have found no significant improvements in sprint performance through acute Cr ingestion (Ahmun et al., 2005; Cornish, Chilibeck Burke, 2006; Kocak Karli, 2003). Ahmun et al., (2005) investigated the ergogenic effect of Cr on sprint performance in male rugby players. For this study a Wingate test protocol was utilised prior and post Cr supplementation. Findings of this study were that there was no significant improvement in maximal cycle sprints through Cr ingestion. However in contrast Izquierdo et al., (2001) found that acute Cr supplementation improved sprint times in male hand ball players. For this study subjects were either assigned Cr or placebo over a 5 day period. The protocol that was utilised consisted of repeated sprint runs that were consistent with sprint distances achieved during handball match play. One issue that could have had a determining factor of the non significant results found by Ahmun et al (2005) is the protocol that was utilised. A Wingate test was utilised to test the sprint performance in rugby players, however the relevance of a Wingate test to measure rugby performance is not sports specific there scrutinising the validity of the results. In contrast Izquierdo et al (2001) utilised a protocol which successfully replicated distances found in handball match play therefore maintaining validity. Ahmun et al (2005) also failed to incorporate a dietary analysis into the experimental design of the protocol, therefore whether or not Cr stores within the subjects utilised were full cannot be determined, which gives rationale for results showing no significant improvement. In contrast Izquierdo et al (2001) implemented a dietary examination of subjects that were utilised; this was initiated to determine whether any subjects had ingested Cr or any ergogenic aids prior to baseline testing. This assisted with maintaining validity during research. This can be supported by Romer et al (2001) and Vandebuerie et al (1998) who utilised a protocol containing a dietary analysis and concluded a significant improvement in sprint times within subjects. Cr supplementation and Soccer performance Given the intermittent physical demands of soccer, which requires players to produce high power outputs and maintain or repeat them with only a few seconds of recovery, (Reilly and Williams, 2003) it seems feasible that soccer players would benefit from the supplementation of Cr as an ergogenic aid to improve their overall performance. However research that has investigated the effect on acute Cr supplementation on different variables of soccer performance and predominately sprint performance utilising a soccer simulation protocol is limited (Ostojic, 2004; Mujika et al 2000; Cox et al 2002). The Aforementioned studies have primarily focused on the effects of Cr supplementation on highly trained athletes that are competing at a high standard of competition. However no previous research has looked into the effects of acute Cr supplementation on amateur soccer players. Being as though Cr monohydrate is an immensely popular ergogenic aid not only among professional athletes but also amateur and recreational athletes, the benefit to amateur athletes needs to recognised. Previous research that has looked into the effects of acute Cr supplementation on soccer players using a soccer simulation protocol is discussed below. Ostojic (2004) examined the effects of acute Cr supplementation (3 x 10g doses for 7 days) on 20 young male soccer players (16.6 Â ± 1.9 years). For the testing procedure a double blind method was used and where subjects were either administered either Cr or placebo. Subjects completed two separate trials prior and post to Cr or placebo. The testing procedure consisted of a number of soccer specific skill tests which included a dribble test, sprint-power test, endurance test and a vertical jump test. Results found that there was a significant improvement in a number of the soccer specific tests; this includes superior improvements in sprint times, vertical jump scores and the dribble test. However no significant improvements were made on endurance performance after the two trials. Although a significant improvement was found in vertical jump performance, it is of concern to future researchers to whether the vertical jump test that was utilised during the design is a soccer specific test. During the test subjects were instructed to keep their trunk as straight as possible whilst keeping their hands on their hips to avoid contribution from the arms which doesnt successfully replicate jumping movements in soccer therefore questioning the validity of the vertical jump test as to whether or not it is a measure of soccer specific performance. The age of the subjects in this research can also be scrutinised. Eichner, King, Myhal, Prentice and Ziegenfuss (1999) confirmed that there was insufficient research to determine the acute and chronic side effects of Cr consumption in athletes under the age of 18 therefore places the subjects which were used in the mentioned study under possible risk. Eichner et al (1999) also highlighted that Cr supplementation in young athletes could have a possible degradation of ethics, by where a win at all costs mentality is fostered and an attitude by where ergogenic aids are necessary to win, which is the wrong message to be installing in young athletes. Likewise Mujika, Padilla, Ibanez, Izquerido and Gorostiaga (2000) concluded acute Cr supplementation (20g a day x 6 days) significantly improved sprint performance and found no significant improvement in endurance performance using a soccer simulation protocol. Mujika et al (2000) also documented no increase in vertical jump performance using a similar protocol to Ostojic (2004) which has minimal significance in a soccer simulation study. Mujika et al (2000) tested 19 elite male soccer players who at the time of investigation were highly trained, however only 17 fully completed the testing due to illness or injury. The protocol for this investigation consisted of a circuit of different exercises which consisted of a repeated sprint test (5 and 15m), vertical jump test and an intermittent endurance test. Findings in this study concluded that mean sprint times improved significantly (p This de-training effect is evident for the vertical jump test as no significant improvement between the two trials was found. However if there was a significant de training effect it would have had negative consequences on other testing variables such as sprint performance, this however is not the case as sprint performance significantly improved. Mujika et al (2000) should have took into consideration a possible detraining effect when devising the experimental design as this could have negatively affect the validity of the results. Cox, Mujika, Tumilty and Burke (2002) devised a study which tested Cr supplementation (20g a day) or placebo (20g glucose a day) on 14 elite female soccer players from the Australian institute of sport (AIS) using a soccer simulated protocol. The experimental design consisted of two trials before and after Cr or placebo over a 6 day period. The protocol consisted of fifty five 20m sprints, ten agility runs and a precision ball kicking drill which are separated by recovery walks, jogs and runs. The main findings in this study were that the average 20m sprint time in the Cr group decreased from 3.75 Â ± 0.19 to 3.69 Â ± 0.18s however this decrease in sprint time failed to reach the statistical significance level (p Cox et al (2002) also incorporated a standardised training regime and a controlled diet for the intervention week and also scheduled testing so that it would occur at the same time of day before and after supplementation. In contrast Mujika et al (2000) failed to utilise effective standardised procedures during their experimental design. As previously mentioned Mujika et al (2000) testing procedures took place 3 days after the subjects season had finished therefore training was not standardised due to the fact that subjects had no organised training sessions during the intervention week. Mujika et al (2000) also lacked a familiarisation trial, subjects were only familiarised with the testing procedures prior to arriving for the 1st trial which could substantially affect the results. However although Cox et al (2000) standardised procedures by included a controlled diet for the subjects, it is interesting to note that one of the subjects was a vegetarian, whos Cr content is virtually zero (Greenhaff, 1997). Research has found that vegetarians respond quicker and more effectively to Cr supplementation than those who follow a normal sedentary diet and have natural muscle creatine content (Burke, Chilibeck, Parise, Candow, Mahoney Tamopolsky., 2003; Watt, Garnham Snow, 2004) therefore scrutinising the validity of the results. It may be of future reference to eradicate vegetarians in a experimental design which utilises Cr supplementation due to the diet implications that vegetarians have. Soccer Simulation performance tests To date there has been a number of soccer simulation performance tests which have been utilised to assess and measure different physiological aspects of the game (Bangsbo and Lindquist, 1992; Cox, 2002; Drust, Reilly and Cable, 2000; Nicholas, Nuttall and Williams, 2000). These protocols have been implemented so that they take into consideration different aspects of soccer performance and try to replicate the exercise patterns that are observed during match play, however due to the spontaneity of the soccer it is difficult to assess every physical or metabolic demand (Drust, Reilly and Cable, 2000). Researchers have used different protocols when investigating the metabolic and physical demands of soccer, these can documented into laboratory based protocols (Drust, Reilly and Cable, 2000; Thatcher and Batterham, 2004) and field based protocols (Bangsbo and Lindquist, 1992; Cox, 2002; Nicholas et al 2000). Laboratory based soccer performance protocols Drust, Reilly and Cable (2000) devised a laboratory based protocol on a motorised treadmill what represented the work rates that are observed during soccer match play. For the experimental design 7 male university soccer players (24 Â ± 2 years) were used and the testing consisted of three separate testing blocks which were separated by 6 days. The protocol consisted of the different exercise intensities that are utilised during soccer match play; this consisted of walking, jogging, cruising and sprinting. The speeds at which these exercises were performed on the treadmill were consistent with speeds observed by Van Gool, Van Gervan and Boutmans (1988) during a match analysis. Each testing block consisted of two 22.5 minute cycles which consisted of 23 bouts which were followed by a recovery period of 71 seconds. During each bout the duration of each activity was as follows: walking 35 seconds (s), jogging 50.3s, cruising 51.4s and sprinting 10.5s. However in relevance to this research project it should be noted that the duration covered during the sprint bouts of the protocol of Drust, Reilly and Cable (2000) which is 10.5s does not successfully coincide with match analysis from several soccer studies that have documented the duration of sprint bouts during soccer match play. Research has found that the average sprint time during soccer match play lasts between on average two to four seconds in duration (Bangsbo, Norregard Thorso,1991; Mayhew and Wenger, 1985) therefore concluding in some instances Drust, Reilly and Cables (2000) laboratory based soccer specific protocol can be deemed as in valid as it fails to accurately replicate different soccer performance variables that take place in match play. Another lab based test that was utilised to measure specific variables in soccer performance was devised by Thatcher and Batterham (2004). For this protocol six male professional soccer players were used and the testing consisted of 29 minute exercise bouts on a non motorised treadmill that focused on replicating different speeds, durations, distances and heart rates that occur during soccer match play. Findings from this study suggest that the protocol that was utilised induced a similar physiological load to soccer match play and can be determined as a valid measure of soccer performance. Although lab based soccer specific protocols have been found to replicate some instances of soccer performance it is of consideration of this research project that the limitations and positives of such protocols be noted. The aforementioned lab based failed to perform a re-test procedure to conclude whether their protocols maintained reliability therefore the amount of error in each protocol cannot be determined. Another limitation of lab based testing is that due to tests being performed on treadmills, this limits the subjects to straight-line running only, therefore does not take into consideration lateral movements and agility patterns, which have found to be major characteristics of soccer performance (Bangsbo and Lindquist, 1992). These unorthodox movement patterns need to be taken into consideration when assessing soccer performance as they increase energy expenditure significantly (Nicholas et al., 2000). One positive aspect of lab based protocols are that procedures such as a ir temperature, equipment utilised and humidity can be easily standardised to remain constant throughout performance testing. Field Tests Nicholas et al (2000) devised the Loughborough Intermittent Shuttle test (LIST) to simulate the activity patterns during a game of soccer. The LIST consisted of two separate stages which were known as part A and part B. Part A lasted 70 minutes and consisted of five 15 minute exercise pe Effect of CR Supplementation on Athletic Performance Effect of CR Supplementation on Athletic Performance Introduction To succeed in a given sport at any level of competition, athletes must possess specific physiologic, psychologic, and biomechanic traits critical to success in that sport, but they must also receive optimal physical, mental, and biomechanical training to maximise this genetic potential (Williams, Kreider Branch, 1999). However many athletes believe that the combination of genetic traits and optimal training alone are not sufficient to achieve maximum performance, therefore the use of ergogenic aids has become common to improve sports performance beyond the effect of training (Sundgot-Borgen, Berglund Torstveit, 2003). The use of ergogenic aids will allow athletes to gain that competitive advantage over opponents therefore leading to potential success. According to Williams, Kreider Branch, (1999) ergogenic aids are substances or treatments that are theoretically designed to enhance physical power, mental strength or mechanical edge therefore potentially improving athletic performa nce. Given the various demands of team sports such as Soccer, Rugby and Hockey, which require short intermittent bouts of high intensity exercise which are interspersed by low level exercise, it seems feasible the use of ergogenic aids in such sports may enhance and benefit performance to gain that competitive edge over opponents. One ergogenic aid which has become popular among amateur, professional and recreational athletes over recent years is Creatine Monohydrate (Cr). Creatine is a naturally occurring amino acid derivative which is found in skeletal muscle, but is also a normal dietary constituent with a daily requirement of approximately 2 to 3 grams depending on body size (Ostojic, 2001). The majority of creatine in muscles is stored in the form of phosphocreatine (PCr) which serves as an important contributor to energy metabolism during high intensity exercise (Williams, Kreider Branch, 1999). PCr provides the high energy phosphate for adenine diphosphate (ADP) to restore adenine triphosphate (ATP) concentration rapidly via the Cr kinase (CK) reaction (Clarkson, 1996). Hultman, Bergstrom and McLennan-Anderson, (1967) demonstrated that depletion of PCr stores within the muscles can lead to a decline in athletic performance during high intensity exercise, so theoretically increasing PCr stores through Cr supplementation would enhance the ability to maintain high intensity exercise over a prolonged period of time, leading to increases in sporting performance. Ahmun (2005) and Hultman, Soderlund, Timmons, Cederblad, Greenhaff, (1996) demonstrated that the average Cr concentration in human muscle can be increased through Cr supplementation over a 7 day period from 20% pre Cr to 50% post Cr. Since PCr is a substrate for the ATP-PCr energy system which is essential for high intensity exercise of 30 seconds or less it seems logical that the supplementation of Cr would be beneficial to exercise tasks of this duration. Therefore the majority of previous research has focused on bouts of anaerobic performance of To date the effect of Cr supplementation on athletic performance has been widely researched. This includes include positive effects of Cr supplementation over a prolonged period of over 4 weeks which is otherwise known as the maintenance phase (Knehans, Bemben, Bemben and Loftiss, 1998; Larson, Hunter, Trowbridge, Turk, Harbin and Torman, 1998). Also demonstrated have been positive effects of Cr supplementation on exercise performance using a shorter ingestion period known as the loading phase (Stout, Echerson, Noonan, Moore, and Cullen, 1999; Volek, Boetes, Bush, Putukian, Sebastianelli and Kraemer, 1997a). This includes improvements in performance variables such as strength, speed and delaying the onset of fatigue (Okudan and Gokbel, 2004; Volek, Kraemer, Bush, Boetes, Incledon, Clark and Lynch 1997b; Kocak Karli , 2003) Team sports consist of repeated bouts of intermittent high intensity exercise therefore consistently relying on the ATP-PCr energy system which if depleted can have a major factor on performance and the outcome of a game (Ostojic, 2004). One such sport which consists of repeated bouts of high intensity exercise is soccer. Soccer players are required to produce high power outputs and maintain or repeat them with only a few seconds of recovery, (Reilly and Williams, 2003). Such high intensity instances could be the deciding factor of a game, for example sprinting back to make a game saving tackle or sprinting past a defender to the ball to make a shot. One high intensity exercise instance which occurs in a soccer match are bouts of sprinting, which are estimated to consist of 8.1% of a 90 minute match and occur approximately every 90 seconds lasting between two to four seconds in duration (Bangsbo, Norregard Thorso, 1991). Given the fact that there is considerable support for Cr as an ergogenic aid it would be reasonable to suggest that a soccer players sprint performance would benefit from Cr supplementation. However there is minimal research which has looked into the effects of Cr on sprint performance and variables of soccer match play such as agility running, lateral stepping and running backwards( Cox, Mujika, Tumilty and Burke 2002; Ostojic, 2004; Mujika, Padilla, Ibanez, Izquierdo and Gorostiaga, 2000). The aforementioned studies have determined the effects of Cr on elite soccer players, female soccer players and youth soccer players (Ostojic, 2004; Mujika et al., 2000; Smart et al 1998; Cox et al., 2002). However there is no present research that looks into the effects of acute ( Another aspect to consider upon testing the effects of Cr on sprint performance on amateur soccer players is the protocol to be used. Although there have been many protocols which have been designed to measure and simulate soccer performance, plenty of these have failed to adequately simulate the different movement patterns (sprinting, walking, running backwards, lateral stepping) which are involved in a game of soccer (Drust, Reilly and Cable, 2000; Abt, Reaburn, Holmes and Gear, 2003; Thatcher and Batterham, 2004). It seems rational that when assessing components of soccer performance that the protocol that is utilised replicates the different activity patterns and demands of soccer match. If this is not taken into consideration it becomes difficult to determine whether Cr supplementation will have any benefit on soccer performance. Therefore the utilised protocol needs to concisely replicate movement patterns in soccer so that a valid assumption can be made to determine the erogen eity of acute Cr supplementation on sprint performance in amateur soccer players. Thus the purpose of this study is to conduct an investigation that will determine the effect of acute Cr supplementation on sprint performance in Caucasian male amateur soccer players, using a soccer simulation protocol in an accurate, valid and reliable manner with two trials consisting over a 7 day period. Concluding whether or not acute Cr supplementation can be used as an ergogenic aid to improve a footballers sprint performance, therefore recommending to athletes and coaches alike. Literature Review Creatine Monohydrate: Background Creatine monohydrate is one of the most popular sporting supplements in the world today and is used by high school athletes, the elderly, professional and recreational athletes in the hope of improving physical performance (Bemben and Lamont, 2005). It is the most commonly available Cr supplement and the form primarily used in most research studies. Cr monohydrate comes in a number of forms including powder, tablets, gel, liquid, chewing gum and candy (Williams, Kreider and Branch, 1999, p.43). Greenhaff (1997) indicated powdered Cr, ingested with solution to have a quicker absorption rate at raising muscle Cr concentration than using Cr supplementation of a tablet form. Conversely Vuckovich and Michaelis (1999) reported no significant difference in absorption rate between the two different forms. Dosage methods The supplementation dosages of Cr can be broken down into two different phases, otherwise known as the loading phase and maintenance phase. The loading phase that is commonly used in research consists of ingesting daily, 20-30g of Cr in four equal doses of 5-7g dissolved in around 250ml of fluid interspersed throughout the course of the day (preferably morning, noon, afternoon and evening) for a period of 5 to 7 days (Greenhaff, 1997; Kreider, 1997). Hultman et al (1996) utilised a less intense loading method of 3g/day for 28 days and proposed it to be just as effective as the aforementioned loading protocol. However this method places a longer dependency on subjects to comply with the supplementation program, therefore placing more variables into the reliability of results. Following the loading phase, maintenance dosages are considerably lower. Most research investigating the effects of Cr using the maintenance phase, have utilised dosages of 3 to 15g over a 4 to 10 week period (Bemben et al., 2001; Kreider et al., 1998; Stone et al., 1999; Vandenberghe et al., 1997). It is recommended to consume Cr with warm water, as it facilitates the dissolving of the solution and also aid absorption (Harris et al., 1992). It should also be noted that the ingestion of caffeine during Cr supplementation eradicates its potential ergogenic effect (Vandenberghe et al., 1996; Van Leemputte, Vanstapel Hespel, 1997). Vandenberghe et al (1996) demonstrated that a control group that ingested Cr combined with caffeine to have a lessened ergogenic potential compared to a group that ingested Cr without caffein e during repeated bouts of high intensity exercise. Side effects There is no conclusive scientific evidence to suggest that Cr ingestion has any negative side effects utilising the proposed dosage methods ( Larson et al., 1998; Schroder, Terrados Tramullas, 2005). There is further evidence to support this as Kreider et al (1999) found no negative side effects in athletes who had been ingesting Cr for up to 3 years. Poortmans and Francaux (1999) demonstrated similar findings for athletes for taking Cr for up to 5 years. Only undocumented anecdotal reports have reported any adverse negative side effects through Cr supplementation, this includes gastrointestinal distress, muscle cramping and dehydration (Associated press 1997, 1998). Taking dehydration into consideration such anecdotal research can be scrutinised. Oopik, Timpmann and Medijainen, (1995) demonstrated that Cr supplementation increased body mass, while also reporting increases in total body water. Such findings signify that Cr supplementation may prevent dehydration rather than be a cause, due to the fact it can promote water retention. Cr supplementation has been demonstrated to increase body mass by up to 2kg over an acute period of time (Balsom et al., 1995; Becque et al., 1997). This could be recognised as a negative side effect for athletes that compete in weight control sports, as Cr ingestion may impede their ability to make regulated weight in a forthcoming event. This gives a consensus that athletes in such activities need to be made aware that although Cr can promote gains in strength and power, it can increase body mass. Physiology of Soccer Soccer players are frequently required to produce high power outputs and maintain of repeat them with only a few seconds of recovery (Reilly and Thomas, 2003). This includes intermittent bouts of kicking, tackling, turning, sprinting, changing pace and maintaining balance and control of the ball whilst under pressure from an opponent (Wisloff, Helgerud Hoff, 1998). To gain a scientific perspective of the different physiological demands of soccer performance, match and time motion analysis have been utilised (Bangsbo, 1994). This analysis has allowed researchers to determine the overall workload of players during a 90 minute match by calculating total distance covered, and the pattern of activities performed during a game (e.g. sprinting, cruising, walking etc). Movement patterns of Soccer It is estimated that the total distance covered during a 90 minute soccer match varies from 8.7km to 11.5km ( Bangsbo Lindquist, 1992; Ekblom, 1986; Ohashi et al., (1988); Reilly and Thomas, 1976; 1988; Rampini et al., 2007; Wade, 1962). The large variance in distances covered are due in part to the differing styles of play, levels of competition and skill level of the teams that were utilised (Luxbacher, 1997). Reilly (1994) documented the different activity patterns of elite outfield players from the English top division and other major national leagues in Europe and Japan using different methods of match analysis. Results found that a 90 minute match consists of 24% walking, 36% jogging, 20% cruising sub maximally (striding), 11% sprinting, 7% moving backwards and 2% moving in possession of the ball. The categories of sprinting and cruising are defined as high intensity exercise. In terms of distances covered the ratio of low intensity exercise to high intensity exercise during a soccer match is 7 to 1 denoting that the outlay of energy for soccer is predominately aerobic ( Reilly and Thomas, 1976). However the importance for high intensity bouts during soccer match play should not be underestimated. The timing of such a bout could be the defining factor of a game whether in possession of the ball or without the ball. Although work-rate profiles are relatively consistent for players from game to game it is the high intensity exercise which is the most constant feature (Bangsbo, 1994). The number of sprints reported in a soccer game varies greatly from 17 to 62 (Bangsbo et al., 1991; Mohr, Krustrup Bangsbo, 2003). This variance is largely determined by the positional role of the player. Findings by Reilly (1996) demonstrated that midfielders and strikers completed more sprinting bouts than centre backs or full backs therefore relying more on the anaerobic energy system. However if there is not a prolonged recovery period or an individual is not properly conditioned they will not subsequently recovery from high intensity bouts of exercise and fatigue will occur (Reilly, 1996). This is evident as Reilly (1996, p.72) documented that the majority of goals conceded during a soccer match occurred in the final ten minutes of play. A popular theory for this occurrence has been found to be mental fatigue or lapses in concentration from defenders (Reilly, 1996, p.72). However this can theory can be scrutinised as research found that the onset of fatigue in intermittent exercise such as soccer is caused by low muscle glycogen stores (Balsom et al., 1999). Acute Cr supplementation and sprint performance in team sports Athletes in team sports such as soccer, rugby, hockey and American football are required to repeatedly reproduce intermittent bouts of high intensity exercise with minimal recovery. Being able to consistently reproduce such bouts at maximal ability (e.g. sprinting, jumping, running backwards) could be the deciding factor in competition to gain that extra edge of an opponent. During high intensity exercise of an intermittent nature the main contributor of energy is PCr (Williams, Kreider Branch, 1999, p29). Depletion of PCr stores during high intensity exercise has been found to be a factor which has lead to a decline in athletic performance (Hultman, Bergstrom and McLennan-Anderson, 1967). Through the supplementation of Cr, it hypothesised that PCr stores are replenished at a faster rate therefore improving an athletes ability to recover and perform intermittent high intensity bouts of exercise, leading to improved athletic performance (Greenhaff et al, 1993). There have been various studies that have tested this hypothesis by investigating the ergogenic effect of acute Cr supplementation on sprint performance of athletes in team sports (Ahmun et al., 2005; Cornish, Chilibeck Burke, 2006; Izquierdo et al., 2001; Kocak Karli, 2003; Romer et al., 2001; Vandebuerie et al., 1998). However the aforementioned studies have contrasting findings with a quantity of studies finding a significant improvement in sprint performance through Cr supplementation (Izquierdo et al., 2001; Romer et al., 2001; Vandebuerie et al., 1998). On the contrary other studies have found no significant improvements in sprint performance through acute Cr ingestion (Ahmun et al., 2005; Cornish, Chilibeck Burke, 2006; Kocak Karli, 2003). Ahmun et al., (2005) investigated the ergogenic effect of Cr on sprint performance in male rugby players. For this study a Wingate test protocol was utilised prior and post Cr supplementation. Findings of this study were that there was no significant improvement in maximal cycle sprints through Cr ingestion. However in contrast Izquierdo et al., (2001) found that acute Cr supplementation improved sprint times in male hand ball players. For this study subjects were either assigned Cr or placebo over a 5 day period. The protocol that was utilised consisted of repeated sprint runs that were consistent with sprint distances achieved during handball match play. One issue that could have had a determining factor of the non significant results found by Ahmun et al (2005) is the protocol that was utilised. A Wingate test was utilised to test the sprint performance in rugby players, however the relevance of a Wingate test to measure rugby performance is not sports specific there scrutinising the validity of the results. In contrast Izquierdo et al (2001) utilised a protocol which successfully replicated distances found in handball match play therefore maintaining validity. Ahmun et al (2005) also failed to incorporate a dietary analysis into the experimental design of the protocol, therefore whether or not Cr stores within the subjects utilised were full cannot be determined, which gives rationale for results showing no significant improvement. In contrast Izquierdo et al (2001) implemented a dietary examination of subjects that were utilised; this was initiated to determine whether any subjects had ingested Cr or any ergogenic aids prior to baseline testing. This assisted with maintaining validity during research. This can be supported by Romer et al (2001) and Vandebuerie et al (1998) who utilised a protocol containing a dietary analysis and concluded a significant improvement in sprint times within subjects. Cr supplementation and Soccer performance Given the intermittent physical demands of soccer, which requires players to produce high power outputs and maintain or repeat them with only a few seconds of recovery, (Reilly and Williams, 2003) it seems feasible that soccer players would benefit from the supplementation of Cr as an ergogenic aid to improve their overall performance. However research that has investigated the effect on acute Cr supplementation on different variables of soccer performance and predominately sprint performance utilising a soccer simulation protocol is limited (Ostojic, 2004; Mujika et al 2000; Cox et al 2002). The Aforementioned studies have primarily focused on the effects of Cr supplementation on highly trained athletes that are competing at a high standard of competition. However no previous research has looked into the effects of acute Cr supplementation on amateur soccer players. Being as though Cr monohydrate is an immensely popular ergogenic aid not only among professional athletes but also amateur and recreational athletes, the benefit to amateur athletes needs to recognised. Previous research that has looked into the effects of acute Cr supplementation on soccer players using a soccer simulation protocol is discussed below. Ostojic (2004) examined the effects of acute Cr supplementation (3 x 10g doses for 7 days) on 20 young male soccer players (16.6 Â ± 1.9 years). For the testing procedure a double blind method was used and where subjects were either administered either Cr or placebo. Subjects completed two separate trials prior and post to Cr or placebo. The testing procedure consisted of a number of soccer specific skill tests which included a dribble test, sprint-power test, endurance test and a vertical jump test. Results found that there was a significant improvement in a number of the soccer specific tests; this includes superior improvements in sprint times, vertical jump scores and the dribble test. However no significant improvements were made on endurance performance after the two trials. Although a significant improvement was found in vertical jump performance, it is of concern to future researchers to whether the vertical jump test that was utilised during the design is a soccer specific test. During the test subjects were instructed to keep their trunk as straight as possible whilst keeping their hands on their hips to avoid contribution from the arms which doesnt successfully replicate jumping movements in soccer therefore questioning the validity of the vertical jump test as to whether or not it is a measure of soccer specific performance. The age of the subjects in this research can also be scrutinised. Eichner, King, Myhal, Prentice and Ziegenfuss (1999) confirmed that there was insufficient research to determine the acute and chronic side effects of Cr consumption in athletes under the age of 18 therefore places the subjects which were used in the mentioned study under possible risk. Eichner et al (1999) also highlighted that Cr supplementation in young athletes could have a possible degradation of ethics, by where a win at all costs mentality is fostered and an attitude by where ergogenic aids are necessary to win, which is the wrong message to be installing in young athletes. Likewise Mujika, Padilla, Ibanez, Izquerido and Gorostiaga (2000) concluded acute Cr supplementation (20g a day x 6 days) significantly improved sprint performance and found no significant improvement in endurance performance using a soccer simulation protocol. Mujika et al (2000) also documented no increase in vertical jump performance using a similar protocol to Ostojic (2004) which has minimal significance in a soccer simulation study. Mujika et al (2000) tested 19 elite male soccer players who at the time of investigation were highly trained, however only 17 fully completed the testing due to illness or injury. The protocol for this investigation consisted of a circuit of different exercises which consisted of a repeated sprint test (5 and 15m), vertical jump test and an intermittent endurance test. Findings in this study concluded that mean sprint times improved significantly (p This de-training effect is evident for the vertical jump test as no significant improvement between the two trials was found. However if there was a significant de training effect it would have had negative consequences on other testing variables such as sprint performance, this however is not the case as sprint performance significantly improved. Mujika et al (2000) should have took into consideration a possible detraining effect when devising the experimental design as this could have negatively affect the validity of the results. Cox, Mujika, Tumilty and Burke (2002) devised a study which tested Cr supplementation (20g a day) or placebo (20g glucose a day) on 14 elite female soccer players from the Australian institute of sport (AIS) using a soccer simulated protocol. The experimental design consisted of two trials before and after Cr or placebo over a 6 day period. The protocol consisted of fifty five 20m sprints, ten agility runs and a precision ball kicking drill which are separated by recovery walks, jogs and runs. The main findings in this study were that the average 20m sprint time in the Cr group decreased from 3.75 Â ± 0.19 to 3.69 Â ± 0.18s however this decrease in sprint time failed to reach the statistical significance level (p Cox et al (2002) also incorporated a standardised training regime and a controlled diet for the intervention week and also scheduled testing so that it would occur at the same time of day before and after supplementation. In contrast Mujika et al (2000) failed to utilise effective standardised procedures during their experimental design. As previously mentioned Mujika et al (2000) testing procedures took place 3 days after the subjects season had finished therefore training was not standardised due to the fact that subjects had no organised training sessions during the intervention week. Mujika et al (2000) also lacked a familiarisation trial, subjects were only familiarised with the testing procedures prior to arriving for the 1st trial which could substantially affect the results. However although Cox et al (2000) standardised procedures by included a controlled diet for the subjects, it is interesting to note that one of the subjects was a vegetarian, whos Cr content is virtually zero (Greenhaff, 1997). Research has found that vegetarians respond quicker and more effectively to Cr supplementation than those who follow a normal sedentary diet and have natural muscle creatine content (Burke, Chilibeck, Parise, Candow, Mahoney Tamopolsky., 2003; Watt, Garnham Snow, 2004) therefore scrutinising the validity of the results. It may be of future reference to eradicate vegetarians in a experimental design which utilises Cr supplementation due to the diet implications that vegetarians have. Soccer Simulation performance tests To date there has been a number of soccer simulation performance tests which have been utilised to assess and measure different physiological aspects of the game (Bangsbo and Lindquist, 1992; Cox, 2002; Drust, Reilly and Cable, 2000; Nicholas, Nuttall and Williams, 2000). These protocols have been implemented so that they take into consideration different aspects of soccer performance and try to replicate the exercise patterns that are observed during match play, however due to the spontaneity of the soccer it is difficult to assess every physical or metabolic demand (Drust, Reilly and Cable, 2000). Researchers have used different protocols when investigating the metabolic and physical demands of soccer, these can documented into laboratory based protocols (Drust, Reilly and Cable, 2000; Thatcher and Batterham, 2004) and field based protocols (Bangsbo and Lindquist, 1992; Cox, 2002; Nicholas et al 2000). Laboratory based soccer performance protocols Drust, Reilly and Cable (2000) devised a laboratory based protocol on a motorised treadmill what represented the work rates that are observed during soccer match play. For the experimental design 7 male university soccer players (24 Â ± 2 years) were used and the testing consisted of three separate testing blocks which were separated by 6 days. The protocol consisted of the different exercise intensities that are utilised during soccer match play; this consisted of walking, jogging, cruising and sprinting. The speeds at which these exercises were performed on the treadmill were consistent with speeds observed by Van Gool, Van Gervan and Boutmans (1988) during a match analysis. Each testing block consisted of two 22.5 minute cycles which consisted of 23 bouts which were followed by a recovery period of 71 seconds. During each bout the duration of each activity was as follows: walking 35 seconds (s), jogging 50.3s, cruising 51.4s and sprinting 10.5s. However in relevance to this research project it should be noted that the duration covered during the sprint bouts of the protocol of Drust, Reilly and Cable (2000) which is 10.5s does not successfully coincide with match analysis from several soccer studies that have documented the duration of sprint bouts during soccer match play. Research has found that the average sprint time during soccer match play lasts between on average two to four seconds in duration (Bangsbo, Norregard Thorso,1991; Mayhew and Wenger, 1985) therefore concluding in some instances Drust, Reilly and Cables (2000) laboratory based soccer specific protocol can be deemed as in valid as it fails to accurately replicate different soccer performance variables that take place in match play. Another lab based test that was utilised to measure specific variables in soccer performance was devised by Thatcher and Batterham (2004). For this protocol six male professional soccer players were used and the testing consisted of 29 minute exercise bouts on a non motorised treadmill that focused on replicating different speeds, durations, distances and heart rates that occur during soccer match play. Findings from this study suggest that the protocol that was utilised induced a similar physiological load to soccer match play and can be determined as a valid measure of soccer performance. Although lab based soccer specific protocols have been found to replicate some instances of soccer performance it is of consideration of this research project that the limitations and positives of such protocols be noted. The aforementioned lab based failed to perform a re-test procedure to conclude whether their protocols maintained reliability therefore the amount of error in each protocol cannot be determined. Another limitation of lab based testing is that due to tests being performed on treadmills, this limits the subjects to straight-line running only, therefore does not take into consideration lateral movements and agility patterns, which have found to be major characteristics of soccer performance (Bangsbo and Lindquist, 1992). These unorthodox movement patterns need to be taken into consideration when assessing soccer performance as they increase energy expenditure significantly (Nicholas et al., 2000). One positive aspect of lab based protocols are that procedures such as a ir temperature, equipment utilised and humidity can be easily standardised to remain constant throughout performance testing. Field Tests Nicholas et al (2000) devised the Loughborough Intermittent Shuttle test (LIST) to simulate the activity patterns during a game of soccer. The LIST consisted of two separate stages which were known as part A and part B. Part A lasted 70 minutes and consisted of five 15 minute exercise pe