HOW: Stand on a band to anchor it from one end. Hold on to both ends of the band with your hands, then raise your arms in the scaption plane (not to the side or directly in front of you - but in between). Slowly return to starting position. To challenge yourself more, you can either tighten up the band by holding it closer to your feet or using a strong resistance band.
FEEL: The muscles of your shoulder working with this exercise.
COMPENSATIONS: Avoid shrugging the shoulder blades as you move into this position.