This prosthesis recycles by ProQuest

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If you will, call it an ergonomically designed, green robotic foot. Researchers at the University of Michigan have designed a prosthesis that recycles energy that amputees normally waste between steps, making it easier for them to walk. Art Kuo, a professor of mechanical and biomedical engineering, said the wasted energy makes it seem to amputees that they are carrying an additional 30 pounds while walking. He and Steve Collins, then a University of Michigan graduate student, designed the prototype. The energy-recycling foot puts the wasted walking energy to work enhancing the power of ankle push-off. The foot naturally captures the dissipated energy; and a microcontroller tells the foot to return the energy to the system at the right time.

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