Supertraining
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[Supertraining] Re: Oscar Pistorius - a considerable advantage? Paul Rogers Mon Jul 14 01:25:24 2008
BTW, some great analysis going on over at "The Science of Sport" by Dugas and Tucker: http://scienceofsport.blogspot.com/2008/05/pistorius-verdict-comments- and.html Paul Rogers Gympie, Australia --- In [EMAIL PROTECTED], "carruthersjam" <[EMAIL PROTECTED]> wrote: > > Ken Jakalski kindly sent me the below article: > > http://www.rice.edu/nationalmedia/news051608oscar.shtml > > Houston, TX -- (May 16, 2008) -- A world-renowned team of experts in > biomechanics and physiology from six universities, led by Professor > Hugh Herr of the Massachusetts Institute of Technology's Media Lab, > refutes scientific claims that the prostheses worn by Oscar > Pistorius, a 21-year-old South African bilateral amputee track > athlete, provide him with an unfair advantage in the 400-meter race. > Their conclusions were based on data collected at the Rice University > Locomotion Laboratory, under the direction of Professor Peter Weyand. > Pistorius hopes to run in the 400-meter race at the Beijing Olympics > this summer. > > Based on the team's findings, the Court of Arbitration for Sport > (CAS) in Lausanne, Switzerland, has ruled that Pistorius is eligible > to participate in International Association of Athletics Federations > (IAAF) sanctioned competitions. If he qualifies for the 2008 Beijing > games, Pistorius would be the first disabled athlete ever to run > against able-bodied athletes in an Olympic event. > > The team's findings were presented to the CAS April 29-30 by Herr and > Professor Rodger Kram of the University of Colorado at Boulder, and > provided the foundation for Pistorius' appeal to overturn the IAAF > decision that previously banned him from running against able- bodied > athletes in races that are governed by IAAF rules. The team's > findings were presented at the CAS, where Pistorius was represented > by the international law firm of Dewey & LeBoeuf on a pro-bono basis. > > In addition to Herr, Weyand and Kram, the panel of experts included > Professor Matthew Bundle from the University of Wyoming, an expert in > the energetics and mechanics of sprinting performance; Craig McGowan, > from the University of > Texas at Austin, a leading authority on muscle, tendon and joint > mechanics; > Alena Grabowski, from the Massachusetts Institute of Technology, an > expert in human locomotor energetics and biomechanics; and Jean- > Benoît Morin from the University of Saint-Etienne, an expert in the > mechanics of human running performance. > > None received compensation for their research or participation in the > hearing. The authors plan to submit the study to a peer-reviewed > journal now that the legal case has been settled. > > The scientific team was asked to evaluate the IAAF's initial claim > that the Cheetah Flex-Foot prostheses (J-shaped, high-performance > prostheses used for running) worn by Pistorius give him an advantage > over able-bodied runners. The team concluded that the scientific > evidence put forth by the IAAF investigation to ban Pistorius was > fundamentally flawed. "While an athlete's performance in sprints of > very short duration is determined almost entirely by mechanical > factors, in races of longer duration, such as the 400m, performance > depends on both mechanical and metabolic factors," said Herr, a > bilateral amputee who heads the MIT Media Lab's Biomechatronics > research group. > > Based on this performance link, the scientists refuted the IAAF > findings on two major points: the speed-duration relationship and > rates of metabolic energy expenditure. > > Specifically, the scientists concluded that: > > • Pistorius' ability to maintain speed over the course of longer > sprints--his speed-duration relationship--is essentially identical to > that of able-bodied runners, indicating that he fatigues in the same > manner as able-bodied sprinters. > > • Pistorius' rates of metabolic energy expenditure do not differ > from elite non-amputee runners. In particular, he has nearly the same > running economy, or rate of oxygen consumption at submaximal speeds, > and a similar maximal rate of oxygen consumption as elite non- amputee > runners. > > "Based on the data collected at Rice, the blades do not confer an > enhanced ability to hold speed over a 400m race," Weyand said. "Nor > does our research support the IAAF's claims of how the blades provide > some sort of mechanical advantage for sprinting." > > "The study commissioned by the IAAF claimed that Pistorius has a 25 > percent energetic advantage at 400m race speeds. That claim is > specious because anaerobic energy supply cannot be quantified," Kram > said. > > In summary, the team of experts unanimously concluded that the IAAF > allegations were not scientifically valid. > > ================== > Jamie Carruthers > Wakefield, UK >
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