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Marlon Shirley
In 2000, Marlon Shirley became the fastest amputee on earth with the aid of a ­carbon-fiber prosthesis designed especially for sprinting. Rather than mimicking the human foot, the Flex-Foot Cheetah, made by Ossur, an Icelandic prosthesis maker, takes its inspiration from the hind leg of the world’s fastest land animal. Shirley broke his own world record in the 100-meter dash in June at the U.S. Paralympic Track and Field National Championships.



Photographed by Tim Tadder

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