Abstract: The present invention is a physical therapy apparatus for someone who either is a paraplegic and cannot walk or has had hip surgery and therefore cannot put full weight on one or both his or her legs. The novelty is that by having an adjustable sling assembly, the amount of weight the person can put on one or both of his or her legs can be varied so that as the physical therapy apparatus is used which can be used in a manual stage of walking or in a motorized stage with varying speeds, the person can put varying amounts of weight on either leg and can adjust the amount of weight relative to either leg based upon the alternating jackscrew movements driven by a DC motor to raise or lower the sling assembly from various heights to the ground.