Start lying on your back, have an assistant with you to help with the exercise.
Start with your affected arm straight and positioned next to your head with palm facing upwards.
Only move as far as is comfortable, do not push into pain.
Keeping your arm straight, bring it down and across your body to the opposite hip.
Change position so your palm is facing downwards, and your elbow is softened.
Hold the position for a moment.
Straightening your arm, bring it back to the starting position.
Your assistant will provide resistance to both movements upwards and downwards.
Keep the arm moving throughout and grade the resistance to slow the movement, not to stop it completely.
If you do not have someone to help, consider using a hand or wrist weight.
