the head of the humerous can "glide around" in the socket, due to shoulder joint instability due to muscle weakness, muscle imbalance, change or damage to the shoulder anatomy etc. the humerous head can glide up and push into the tendons and other tissues causing irritation and inflammation.
Uploaded on 17 Feb 2012
http://www.physicaltherapytv.com/shou...
- impingement syndrome shoulder pain can be frustrating, if you have
pain reaching overhead or up behind your back it could be rotator cuff
impingement. In this video we discuss how impingement syndrome of the
shoulder is diagnosed, what causes impingement syndrome and what to do.
