Stand upright several steps in front of a wall.
Face away from the wall.
Lift your affected arm up to 90 with your elbow bent so that your fist points towards the ceiling.
Place a stability ball behind your arm, applying gentle pressure so that the ball does not move off the wall.
Push your wrist backwards, into the wall, while keeping your elbow at your side and your head still.
Hold for the required amount of time and then relax your arm.
