Disability dispute in oscar pistorius case

The debate about Pistorius has never stopped. The New York Times once described Pistorius as "a man walking between the able-bodied and the disabled". Unlike swimmers who wear constantly updated "shark skin" or runners who wear ever-changing running shoes, Pistorius's prosthetic limbs seem to have gone far beyond the definition of "equipment", and the accumulation of magical competition results has made the IAAF face unprecedented challenges. However, IAAF or other existing sports laws cannot find a clear definition of the auxiliary ability of high-tech equipment to athletes. In the dilemma of ensuring athletes' individual right to participate in the competition and ensuring a fair competition environment, IAAF chose the latter, while the law supported the former.

From June 5438 to October 2007 10, IAAF specially allocated 50,000 dollars to entrust bruggeman, a famous professor at Cologne University, to study whether the J-blade prosthesis on his leg helped Pistorius gain more advantages than normal people, which led to new unfairness on the runway. During the two-day test, 12 high-speed camera, 3D scanner and various other scientific analysis instruments were used to deeply analyze the running process of Pistorius and his pair of artificial limbs named "Cheetah", which were made of full carbon fiber and some titanium alloys worth 15000. The purpose of this test is to judge whether Pistorius is wearing a "cheetah" like a normal athlete. As the director of the Institute of Bioengineering, he also hired six sprinters to participate in the control experiment. There are two important experiments. First of all, Pistorius wears a mask to measure the blood lactic acid level in the 400-meter dash to judge whether the oxygen consumption is normal. The other is that under the monitoring of 12 infrared camera and four high-speed cameras, four pressure plates were set on the runway of 100 meters, and sensors were installed on Pistorius' thighs and artificial limbs. Infrared cameras can capture images of every corner, while high-speed cameras are used to capture the slow motion when Pistorius touches the platen. Unfortunately, Xiao Pi only ran 80 meters and then stopped because of knee pain. Finally, this conclusion was given to IAAF:

First, although the running performance is close, Pistorius's own physical condition is not as outstanding as other athletes;

Second, when reaching the same speed, Pistorius consumes 25% less physical energy than normal players;

Thirdly, the biomechanical mechanism of Pistorius' prosthesis is obviously different from that of normal ankle joint in terms of vertical ground reaction force and impact force.

Fourthly, in terms of positive force or reaction force, J-shaped cheetah prosthesis is more than three times that of normal ankle joint.

In addition to the above four points, other sports scientists have not given up their condemnation of Pistorius prosthesis. Representative viewpoints include: because Pistorius has no legs, his muscles produce less lactic acid during running than normal athletes, so he is not easy to feel tired; Normal athletes are faster in the first 200 meters and slower in the last 200 meters because of fatigue, but Pistorius is just the opposite. His speed in the last 200 meters is unparalleled. ...

Through careful study of the video of blade runner, it is concluded that Pistorius really benefited a lot from prosthetic devices, which may be the main reason for his amazing achievements. Accordingly, Pistorius was banned from participating in healthy people's competitions in international competitions.

Pistorius and his coach both refuted these allegations, and stressed that "Cheetah" did not bring him more advantages, but brought him a lot of inconvenience. For example, when it rains, the connection between the prosthesis and the body is prone to problems; His starting speed is far behind that of normal athletes, and he must be 30 meters after starting to find the running rhythm; His knees can't bend flexibly, which limits the outbreak of strength. Pistorius stressed that his daily training schedule is exactly the same as that of high-level track and field athletes. On May 16, 2008, the sports arbitration court ruled that Pistorius was disqualified from using artificial limbs to participate in IAAF international competitions, including the 2008 Beijing Olympic Games.

IAAF responded quickly, respected the court's ruling, and allowed "blade runner" to participate in the competition of the able-bodied in the future, including the Beijing Olympic Games, provided that Pistorius met the Olympic competition standards.