Wall Angels for Shoulder Mobility, Upper-Back Strength and Better Overhead Movement Wall angels look simple—but they can quickly expose where your overhead movement is breaking down. Can you raise your arms overhead without: Shrugging your shoulders toward your ears? Flaring your ribs forward? Arching excessively through your lower back? Letting your wrists or elbows pull away from the wall? Feeling pinching in the shoulder? When those compensations appear, the issue may invo