Re: shoulder injury
Darin: you might have just bruised the A-C joint or slight strained it.
Tim: yours sounds like a shoulder impingement sydrome. The head of the shoulder is impinging the rotator cuff or bursa. One exercise that helps is to put your arm on a fixed object and then use the other arm to press the head of the shoulder downward gently a few times. If you are able to lift your arm farther after you are probably getting an impingement. The test is Hawkins-Kennedy. Hold your arm straight out in front palm up bend it at the elbow. Then turn your bend arm towards your center. If you get pain it's likely a shoulder impingement. The inferior glide helps, icing and not sleeping on the arm also helps. You may also need to strengthen your rotator cuff muscles.