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Dwain Chambers PE coursework

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Introduction

Coursework, 2008 An analysis of Dwain Chambers 100m final sprint at the 2003 Paris world championships (august 25th 2003), where he finished fourth in a time of 10.08s. Unit 1: - Movement analysis Sprinting is an event fairly low in technical prowess, but high in power, and this is down predominantly to the sequence of movements which allow the athlete to run. During the main body of the sprint (I.e. after the start) there are two phases, the 'drive phase' and 'recovery phase.' The drive phase of Chambers sprint was the time where his foot was in contact with the track and his muscles (mainly his in his legs) contracted to move him along. Dwain Chambers would have performed hyperextension at his ball and socket hip joint during his drive phase, and this action would have been brought about by the contraction of the gluteus maximus and minimus muscles, as well as the hamstrings. During the drive phase of his run, Chambers would have experienced extension at the hinged knee joint; this would have been brought about by the concentric contraction of the main agonist muscle which in this case would have been the quadriceps. At the ankle plantar flexion would have taken place as the recovery phase of the sprint came to an end and his foot left the track. Chambers would have controlled this action through contraction of the gastrocnemius, to move his foot towards the ground. The combination of these muscle contractions would have been enough to accelerate Chambers on the course of his sprint to speeds in excess of 10ms-1. The second part of the sprint techniques (the recovery phase) is where Chambers brought his feet back round after the drive phase ready to push off on the ground again. ...read more.

Middle

It can be said however that in order to finish the race first they need to show a certain degree of accurate technique, but they are not tested on it. In the 100m final Chambers finishing place of fourth was determined objectively with little dispute. As electronic timers were used in order to clock the times for each individual athlete, it is hard to argue results to the contrary of whom the computers show to have won. This particular race was very close with milliseconds separating the sprinters, and the need for scientific technology to determine the winner was imperative to the race being carried out fairly and medals being handed out accordingly. Unit 4: - Energy systems Dwain Chambers completed the 100m in 10.08 seconds, and this was with him running flat out. An activity of such short duration and extremely high intensity will have used the ATP-PC (alactic) system as it is a system utilized mainly by athletes who compete at as near maximal intensity as possible for 10 seconds or less. Over the course of the race Chambers' body would have been carrying out chemical reactions without him realizing it which allowed his muscle fibers to contract and move him along. For the first three seconds or so of his race, his body would have depleted all of it's original adenosine triphosphate (ATP) stores, and the energy from the breaking of a high energy bond between one of the three phosphate molecules and the adenosine molecule to form adenosine diphosphate (ADP) would have provided energy for muscular contractions during this initial period. However over the course of the 100m it is often the case that the athlete does not draw breath, and it can be assumed that Chambers did not breathe from the start till the end of the race. ...read more.

Conclusion

Plainly the risk was not worth it as he got caught and banned, but there are other consequences which resulted from his use of the steroid. He lost all sponsorship from Sport England and other sources, it is deemed unfair and immoral (going against the ethic of the championships of a level playing field for all), and it would have created a negative role model for children. Anabolic steroids can also have dangerous side effects, including liver damage, heart disease, anxiety and rage. Although little is known about THG's specific effects (because it is a fairly new drug), it is likely to poses similar risks. Despite Chambers two year ban there are those who argue for the ban on drugs to be lifted so that any athlete can use them saying that many of the banned substances are available over the counter and are not illegal and may enter the athletes system without their knowledge, and also that a lift on the drugs ban would enable all athletes to have the same opportunities to perform well as others. But their arguments fail because technologically advanced countries will have an advantage over other countries and it will become less about the athletes ability and more about the countries spending power and drug technology, if drug use is not monitored properly then it can be a health risk to the athlete, as well as this the money being spent on sporting bodies (if they were legalized) on drugs could be better spent in other areas. In an attempt to prevent more drug cheats from beating the system more random-out-of-season drug tests are carried out, more money is investing into the drug testing resources and stricter punishments and life bans are being put in place to prevent other athletes from taking banned substances. ?? ?? ?? ?? Jonathan Gleave, P.E. coursework 1 ...read more.

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