Lie on your back with knees bent and with one arm out to the side at shoulder level.
Keeping your upper arm in contact with the floor, bend your elbow to 90 degrees so that your hand is pointing towards the ceiling.
Place the opposite hand on the top of the shoulder to assist movement awareness.
Relax your shoulder muscles and allow your shoulder to rotate down, bringing your hand towards the floor by your hips.
Lift your hand away from the floor returning to the starting position.
Relax your shoulder muscles and allow your shoulder to rotate up, bringing your hand towards the floor by your head.
Lift your hand away from the floor returning to the starting position.
Repeat for the required number of repetitions.