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Researchers Develop Artificial Legs That Mimic Real Ones

When we walk, most of us don't give the process a second thought. Tiny electrical signals contract the leg muscles to help the joints move. All of it is controlled by our brains. Researchers have been working on developing artificial legs that mimic this natural leg movement. Terry Karpowicz, who is testing one such robotic leg at the Rehabilitation Institute of Chicago, said it "allows me the opportunity to flow down the stairs and not really think about the process of what...

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