How to do it
Engage your abdominal muscles to keep your torso upright and still.
- 1
Stand with your arms at your sides and elbows bent at 90 degrees.
- 2
Keep your elbows close to your sides and rotate your forearms outward.
- 3
Rotate your forearms back inward to the starting position.
- 4
Repeat for the desired number of repetitions.
Expert tip
Focus on engaging the rotator cuff muscles by keeping the movements controlled and not using momentum.
Common mistakes
- ✕Letting the elbows drift away from the sides
- ✕Forcing the forearms past comfortable range
- ✕Moving the upper arms instead of forearms