Stand with side to low pulley. Grasp stirrup attachment with hand furthest from pulley. Bend knees slightly and bend over with resting arm to side of low pulley.
Raise arm to side until elbow is shoulder height. Maintain upper arm perpendicular to torso and fixed elbow position (10° to 30° angle) throughout exercise. Lower and repeat. Repeat with other arm.
Upper arm should travel in perpendicular path to torso to minimize Latissimus Dorsi involvement.