HOW: Stand facing a resistance band with the anchor coming from shoulder height. While holding onto a band, pull back your shoulder blade as far as you can. Make sure to stand back far enough to allow your shoulder blade to come forward when you are releasing the weight.
FEEL: You will feel the muscles on the back of the shoulder blade working with this exercise.
COMPENSATION: Avoid bending the elbow or excessively shrugging up with the shoulder blades.