The biomechanics of human movement investigates a person’s physical performance. Our research focuses on the biomechanics of human movement in the presence of a medical device and on the performance of people with amputation, and other medical conditions such as cerebral palsy and stroke. We develop methods that improve the fit and function of prostheses to improve comfort and quality of life. Our biomechanics studies in quadriplegia, cerebral palsy and stroke use technologies to study human movement biomechanics and as aids for rehabilitation.