
Instructions:
- 1Sit upright with your elbow at 90 degrees, your arm positioned to the side
- 2Rotate your shoulder, moving your hand and forearm upwards
- 3Pause once your forearm is vertical, then slowly lower your hand back down
- 4Repeat on the other side
Tips:
- Keep your elbow close to your side throughout the exercise
- Avoid leaning to one side as you rotate your arm
- Engage your abs and keep your spine neutral for stability