Lie on bench and place back of lower legs against leg pad. Position hips in line with fulcrum. Grasp bottom sides of bench to keep body from moving under resistance.
With knees straight, extend lever downward until hips are extended. Return lever to upright position without allowing back of hips to raise up off of bench. Repeat.
Throughout lift, knees straight and back of hips on bench. Hip may tend to raise up when legs are pulled up. Full range of motion will vary from person to person depending on flexibility.