Quote Originally Posted by FeuerFrei View Post
I haven't really noticed any pains along with the shoulder pain. On the other hand, I can't rule out there being something related. I get tightness in my upper back and my neck on a pretty regular basis. Those might be related. I've also had a nagging pain in my right hip flexor that had some impact on my running gate for awhile but it did not appear to have any impact on the shoulder...at least none that I have noticed.
I've also had a nagging right hip flexor problem, nothing serious at all just annoying, I think it comes from throwing the cross, when you turn your hips with the right leg trailing behind there's a strain on the hip flexor. Lots of warming up and streitching is the answer.

Donny's comments on arm punches when a beginner rings true to me as well. Throwing tense arm punches to try and get more power before getting the technique right does yank at the shoulder and can do damage. I still get over enthusiastic sometimes on the bag and lose my form, when I do it now I go and shadow a little to get the relaxation back and seems to do the trick.