Stand up straight facing a wall.
With your legs wider than hips width, bend down into a squat position.
Your back should remain straight.
Place the hand of the arm your would like to exercise on the wall, reaching across and down in front of you.
It is ok for your body to twist, and for your weight to be over to this side a little as you do this.
With your shoulder blade back and down, simultaneously straighten your legs while sliding your hand diagonally up and out on the wall.
Transfer your weight onto your other leg to arm to reach as far up and away to the side as you can.
Control the movement as you slide the hand back to the starting position while bending your knees down into a squat.
The aim of this exercise is to control your shoulder blade in the back position, preventing your shoulder from hunching up.