HOW: Get set-up standing holding the ends of a band in each hand with an alternate grip, the side you will perform this on will have it’s palm facing forward with the other palm facing down. We will go over the example for the left shoulder working. Start with both hands close to one another by your right hip, then while keeping your elbow straight and left arm/hand rotated out, move your left arm diagonally up towards your left until it is in an overhead position. Slowly lower down and repeat.
FEEL: You should feel the muscles on the outside of your shoulders and shoulder blades working. In the overhead end position, you should feel your shoulder blade muscles squeezed back and down.
COMPENSATION: Do not shrug your shoulder, do not rotate your body, do not bend your elbow, do not lose the outward rotation of your arm/hand, do not lean backwards or side-ways.