quote:Originally posted by deemax:quote:impingement problems.
What is the relationship of impingement problems with rotater cuff/ ulner nerve...ect....--Serious question-- because I have never heard of a pitcher on the DL with an impingement (not saying it hasnt happened) injury, unless the impingement leads to something else.
Impingment is when the muscle/tendons of the rotator cuff (usually the supraspinatus or infraspinatus are compressed between the greater tubercle of the humerus and the acromion. This happens normally at around 120 degrees of shoulder abduction. It can be a genetic condtion or overuse/poor mechanics. Like elbow higher then the shoulder during overhead throwing. It leads to a lot of pain and possible rupture of the tendons if not treated properly and the mechanism of injury fixed. It can become chronic in the form of tendonosis and usually is followed by a rupture in that case due to the build up of scar tissue in the tendon.
Ulnar nerve entrapment can happen at the thoracic outlet (TOS) where it can be compressed by the scalene muscles of the neck. At the elbow as it runs along the olecranon in its groove or under the pronator teres muscle. Ulnar nerve is your "funny bone". It can also be compressed at the wrist. Very similar to carpal tunnel syndrome but it affects the pinky and ring finger instead of the thumb/index/middle fingers. Those are the median nerve. Throwing can create traction to the ulnar nerve at the medial elbow.
When you hear a pitcher has shoulder/rotator tendonitis or inflammation, its normally impingment syndrome that they have.