STEP 1. Grab the handle of a floor pulley with your left hand. Stand with your feet about shoulder-width apart and fairly close to the pulley with your back toward it.
STEP 2. Bend your left arm slightly and keep it fixed at the elbow throughout the movement.
STEP 3. Keep your torso still as you raise your left arm forward to shoulder level. Your palm should be facing the floor at the peak.
STEP 4. Hold this position for a few seconds, then slowly lower your arm back to starting position.