Hugh Herr is building the next generation of bionic limbs, robotic prosthetics inspired by nature’s own designs. Herr lost both legs in a climbing accident 30 years ago; now Hugh Herr directs the Biomechatronics research group at the MIT Media Lab, where he is pioneering a new class of biohybrid smart prostheses and exoskeletons to improve the quality of life for thousands of people with physical challenges. More…

A computer-controlled prosthesis called the Rheo Knee, for instance, is outfitted with a microprocessor that continually senses the joint’s position and the loads applied to the limb. A powered ankle-foot prosthesis called the BiOM emulates the action of a biological leg to create a natural gait, allowing amputees to walk with normal levels of speed and metabolism as if their legs were biological.