One of the predisposing motions for the repetitive stress version of rotator cuff injury is reaching above the head, and for the sudden traumatic injury version, it can be a similar movement with a sudden stress (like serving a tennis ball). I thought of ringing, of course, and realized that while I had known one or two people who quit ringing because of shoulder issues, I wasn't sure what the cause of the shoulder problem was in those cases - was it caused by ringing, or was it just that pain was elicited by reaching up using an already-damaged shoulder? After all, one of the classic pain-inducing activities for someone who already has a RC injury is reaching to a high shelf to put something away, but I don't know anybody has claimed that stocking shelves *causes* the injury (note to self - look that up. I did see an example of someone who was painting a ceiling for hours without a break). I found one study about bellringing injuries in Pubmed, with a couple of follow-up letters to the editor. It's impressive that of all the injuries, none is to the shoulder. The article is old (early 1990s). I'm pretty sure the guy in England who was pulled off his feet a couple of years ago(cargo pants pocket was full of stuff, despite warnings, and the rope caught on it)landed on his shoulder, but that was an indirect result of ringing, similar to the shoulder injuries from snowboarding crashes.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1679841/![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
