Set the pulley on the cable machine to chest height with a D-handle attachment. Stand upright facing the cable machine and grasp the handle with both hands while keeping the arms fully extended in front of you. From this starting position, rotate your torso to one side, keeping your eyes on your hands as you move. Keep the arms fully extended throughout the entire range of motion. Allow the torso to rotate to the point right before your hips want to open up. Then rotate back to the center and alternate sides. Choose a weight that allows a full range of motion without putting unwanted stress on the lower back.