I am a senior in high school so I do a lot of conditioning. I'm on cross country and track so that covers about 20+ miles a week. I also jump rope a lot. I do weight train, but not as much as I used to. I don't box though, I have a speed bag, soon getting a heavy bag, so I just like to mess around with that. My problem doesn't really affect me, only when I lift weights. There are certain excercises that I cannot do properly like flys, dumbell curls, certain pull ups, arnold dumbell presses. But I just do what I can and its working out fine so far. I can still curl the weights, I just do hammer curls, for my flys I found a machine at my gym that works fine for me, arnold presses arn't bad either, I just don't connect the weights together at the bottom. So there is a way around most of it.