2 years ago I deleted my shoulder, broke it in 2 places, torn the rotator cuff, severed the bicep tendon and shredded the labrum. Surgery and 9 months of PT before I was back skiing. I'm not quite back to where I was but I'm 65 and things heal slowly. I do use a power test, but I take the dowels out so that I can release quickly. Unfortunately I just slipped in my wood shop and tore my knee and tibia so I'm out commission for a while. PT is the most important thing!!!!