He’s in shape, so it shouldn’t be a surprise he’s going to attempt to climb the 103 flights of stairs inside Chicago’s Willis Tower this Sunday. “I ran track and cross country in college.” But Zac ...

Advances in bionic prosthetics are taking a major step forward. Thanks to recent research from the Massachusetts Institute of Technology (MIT), amputees could soon regain the sensation of walking ...

CHICAGO - Researchers have come up with new technology that may one day help amputee war veterans: an artificial leg that reads brain signals, and it's already being tested out. The bionic leg that ...

Zac Vawter, a 31-year-old software engineer from Seattle, Washington, celebrates after climbing to the top of the 103-story Willis Tower using the world's first neural-controlled Bionic leg in Chicago ...

Zac Vawter, fitted with an experimental "bionic" leg, looks out from the Ledge at the Willis Tower, Thursday, Oct. 25, 2012 in Chicago. Vawter is training for the world's tallest stair-climbing event ...