Ballroom dancer Adrianne Haslet-Davis, the opening keynote speaker at the upcoming AOPA National Assembly, is back dancing after shrapnel from the Boston Marathon bombing took her left foot. Bionics expert Hugh Herr studied the mechanics of dancing by putting sensors on a dancer of the same height and weight as Haslet-Davis, then collected data about how and when pressure was exerted as she danced. Herr and his team reconfigured the BiOM T2 powered ankle-foot prosthesis for Haslet-Davis, which led to development of an experimental limb with an even wider range of motion.

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