Stand in hyper-extension apparatus. Position thighs prone on large pad and lower leg under padded bar. Place barbell on back of shoulders and grasp bar to sides.
Lower body by bending hips until fully flexed. Raise, or extend hips until torso is parallel to legs. Repeat.
Adjust lower leg brace so pressure is evenly distributed on thigh pad. Maintain barbell's position on back of shoulders when upper body is lowered. Do not lower weight beyond mild stretch. Full range of motion will vary from person to person. Also known as Barbell Hip Extension. Also see Barbell Hyper-extension and Barbell Back Extension.