WASHINGTON (AP) — Engineers have come up with a motor-free device to make walking more efficient and easier — something scientists once thought couldn't be done. The prototype exoskeleton boot runs from just below the knee to the ankle, and when you strap on a pair, you can reduce the energy it takes to walk by 7 percent. The one-pound device relies instead on a spring to store energy and release it with each step, and a clutch that engages the spring at the proper moment. Looks kind of flashy, said Carnegie Mellon University engineering professor Steven Collins, lead author of a study published Wednesday in the journal Nature. "Most studies show that human walking is incredibly efficient, so finding a way to make it better is incredibly interesting," said biomechanical engineering professor Andy Ruina at Cornell University, who wasn't part of the study.
Engineers Create Boot-like Device To Make Walking Easier
By SETH BORENSTEIN, AP Science Writer, San Francisco Chronicle
Wed, 04/01/2015 - 10:46am
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