Not personally familiar with this but you may want to check out --i.e., Google: "Orthopedist author Dr. Kirsch shoulder impingement hanging" -- many have been happy to learn about Kirsch's technique as shoulder impingement is accompanied by quite a bit of pain and completely fixing the problem without surgery sounds too good, right? In any event, I Googled it and noticed that Kirsche's technique is apparently recommended for treatment of frozen shoulder as well as shoulder impingement. I've never read the book but there is a lot of info about on the net.