‘Stumbling Device’ Helps Improve Prosthetic Legs

Researchers are addressing the tendency to stumble in lower-body prosthetics by understanding the way people with two legs catch themselves. They accomplished this by covering test subjects with motion-capturing sensors. It also required tripping them over and over — 190 times, to be exact — for a study. But because humans are so mentally geared to resist stumbling, the team first had to design a stumbling device.