HOW: Begin facing perpendicular to the wall with your finger tips resting on the wall. From this position, slowly walk your fingers up the wall as your arm goes into abduction. Once you reach the top of the motion, slowly walk your fingers back down to the starting position.
FEEL: You should feel the muscles in your shoulder working as you slowly walk your hands up the wall to your prescribed height.
COMPENSATION: Avoid bringing the shoulder up to the ear as you perform this exercise, keep your shoulder relaxed allowing it to work through the appropriate range for shoulder abduction.