I first injured my scalpula in yoga which started my whole TOS saga. In addition to Repetitve strain. After 4 years I can only do very gentle yoga. I can do Zumba if I dont use my arms too much and walking is good. I would love to go back to the Gym but wouldnt be able to do any arm or shoulder machines. I have done some gentle pilates at one PT office and that might be good if it doesnt flare you. Melt Method wher you roll on a soft roller is really good for the fascia and feels good on the ribs. Downward Dog is BAD!