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In 2008, Paralympian Oscar Pistorius, who had both legs amputated below the knee as a child, was barred from the Olympics after a German study concluded that his blade-like, carbon fiber leg prostheses gave him an advantage. Pistorius appealed the decision in 2008 and CU professors Alena Grabowski and Rodger Kram joined a team of researchers who discovered that, if anything, the prostheses were a disadvantage for the runner.

The results and Kram’s testimony helped to overturn the decision, allowing Pistorius to become the first amputee athlete to compete in the Olympics and opening the door for other Paralympians to compete in future games.