 Body Weight Support on a Treadmill BWST. The BWST systems primary purpose is to provide body weight support and control the vertical force exerted on the legs. This also provides trunk stability and prevents the research participant from falling during standing or stepping. The BWST is a device used to assist research participants with neurologic injuries during standing and stepping. Research participants wear a modified parachute harness connected to a cable, which links to the overhead pneumatic support system. We can input the desired amount or percentage of support, and the cable will lift the specified weight from the research participant, leaving less weight to be supported by the research participant. Our laboratory uses a pneumatic, closed loop force controlled system hoist that provides weight support and controls ground contact force patterns. If the actual support varies from the desired support, the system is designed to adjust the pressure in the pneumatic cylinder to equalize the set and actual support force. Due to the constant feedback, this system provides safety and allows for the center of mass movement during stepping. 