Jobs in biomechanics include research positions, physical therapy jobs, sports medicine jobs, and biomedical engineering jobs, to name just a few. Each of these jobs has different duties and responsibilities. For example, if you work in sports medicine, your responsibilities may be to apply biomechanical principles to improve exercise regimens and increase the mobility or performance of athletes or those recovering from injury. In biomedical engineering, you work with other engineers to develop tools, such as mechanical prosthetics, which can provide amputees with more motion or allow them to perform daily tasks.