Lie on your stomach near the edge of a table with your arm relaxed and hanging down. Your head is supported with a towel or hand and neck is in neutral position. Buttocks and trunk are activated.
Lift your shoulder off the surface by sliding your shoulder blade in (towards the spine) and down (towards the buttocks). Lift your arm, thumb pointing upwards, to 'Y' position (135 degrees to the side). Lower the arm back to the starting position controlling your shoulder blade.
