- Upper Trapezius
- Posterior Deltoid
- Medial Deltoid
- Extend the arm horizontally.
- Keep the elbow at chest level.
- Place the other hand at elbow level.
- Keep th back straight.
- Keep the head aligned with the body.
- Attempt to bring the elbow of the extended arm towards the chest of the opposite side.
Never elevate the shoulder. Remember to stretch the other side.