How to do it: Safely attach an exercise band to a sturdy object above your head, such as a door jamb. Grasp the ends of the band with your elbows bent and by your side [A]. Straighten your elbows, keeping them tucked into your side [B]. Slowly return to starting position. Repeat.
Tip: Move only at the elbow. Do not move at the waist, shoulders or back. Contract your abdominals to maintain proper balance and form.