With me it's my shoulders, especially the right shoulder, rotator cuff area which I'm sure I will blow out some day as I age physically but not mentally! <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />
A few years ago when I had my back operation, my Doctor said I had to give up cat sailing, "You aren't 19 anymore and there's nothing I can do to make you 19 again..."
Well, I bought a ligher boat but haven't given it up, yet.