Stand below high pulley. Grasp multi-exercise bar cable attachment with parallel grip. Position hands near sides of head. Squat down slightly with hips flexed, allowing resistance on cable pulley to lift torso upward so spine is hyperextended.
With knees and hips stationary, flex waist so elbows travel toward middle of thighs. Return and repeat.
Note movement occurs in waist, not hips. Hyperextension of spine at top of motion is achieved by anterior rotation of pelvis with flexed hips. See Spot Reduction Myth. Two soft stirrups or triceps rope can also be substituted for multi-purpose bar.
Also see similar exercises: