LightSpeed Lift is a Body Weight Support system designed to be effective, efficient and economical. LightSpeed will provide 0-60 lbs of verticlal lift. This significantly reduces ground reaction forces while providing balance support. The patented "Lift from the Hip" design locates the lift force at the greater trochanter leaving the legs and arms to move freely. Breathing is unrestricted. The hip has motion in all three planes. The LightSpeed frame rests on the floor around any treadmill takng up very minimal extra floor space around the treadmill, 46" X 52" x 92". The front and rear attachment bars adjust the vertical tension easily when body weight support (BWS) is being used. The bars can be removed so that the treadmill can be used normally when no external BWS is needed.