Functional prosthetics have a long history, dating back to ancient Egypt with the “Greville Chester toe” and the “Cairo toe.” While the former was likely cosmetic, the latter may have served an assistive function. Today, Stanford researchers are advancing this legacy through wearable robotics that adapt rapidly to users.
Customization remains vital in prosthetic design, as emphasized by Steven Collins, associate professor of mechanical engineering at Stanford. He notes that ensuring prosthetics meet individual needs is crucial but challenging and costly. To address this, Collins’ Biomechatronics Laboratory employs emulators—special hardware that tests wearable robotics like prosthetics and exoskeletons efficiently and affordably. These emulators help discover optimal designs for assistive devices without needing new robots for each test.
Stanford’s Biomechatronics Lab has found that training significantly enhances exoskeleton performance. After two decades of development, a portable exoskeleton now aids users in walking faster with less effort. A motorized boot reduces running energy costs by attaching around the ankle and foot.
The lab is also developing exoskeletons aimed at reducing joint pain for osteoarthritis sufferers. Collins states, “Joint pain is one of the biggest concerns for older adults and many of them hope that exoskeletons could help relieve that pain. We are trying to make devices that could address this burning need.”
Collins holds multiple affiliations within Stanford University, including being a member of Stanford Bio-X and other institutes focused on human performance and artificial intelligence.
