Sit in an upright position.
Rest your symptomatic arm out to the side on a table or solid work surface.
Your arm should be at approximately 90° out from your body.
Bend your elbow to a right angle.
Maintaining good posture and shoulder blade control, rotate your arm upwards so that your forearm moves off the table from horizontal to vertical.
Your elbow should remain at a right angle and your posture should stay straight with your shoulder blades pulled back and down.
Slowly return to start position and repeat.
