Came across a good resource article from The Strad: http://thestrad.com/latest/editorschoice/why-injury-prevention-is-so-important
I do make it a point to stress to beginner students, and to remind advancing students, to be keenly aware of and avoid/reduce any form of physical tension.
The article provides a good, practical list of preventive measures to take.
Some points that I thought are worth highlighting:
- We must notice the subtle and not-so-subtle changes in our bodies so that we avoid injury.
- Release at every opportunity, especially your fingers and thumbs. Don’t hold awkward positions.
- Even while performing, you can keep tension at bay by rolling your shoulders, adjusting your seating, letting your arms hang down, and moving and wiggling whenever possible. (* note to self, especially for long rehearsals!)
- Try to take some time off and examine what you might have done before pain sets in.