Mohammad Rastgaar, PhD, an assistant professor in the Mechanical Engineering-Engineering Mechanics Department at Michigan Technological University (Michigan Tech), Houghton, has received a National Science Foundation (NSF) $500,000 grant to further advance a powered ankle-foot prosthesis he has developed. The prosthetic joint is multiaxis, meaning it can move the foot from side to side as well as up and down. The prosthesis has sensors on the bottom of the foot to detect how the user is walking. The sensors instantaneously send signals to a microprocessor, which in turn adjusts the prosthesis to make walking more natural. As part of an earlier study, Rastgaar’s team designed and built a large circular treadmill on which their robotic foot walks in circles.