However you sit or stand with the lute, here are a few tips to avoid injury:
- Use a strap - it's difficult to hold the notoriously slippy lute without one!
- Keep your back straight - hunching is very temping.
- If sitting try to have your legs a comfortable distance apart - shoulder width might be a good marker. A few performers play with crossed legs and some use a footstool.
- Let your shoulders relax while you play.
I also use a small square of non-slip material on either my thigh or stomach depending on the size of lute I'm playing.
Here is a picture of how I sit: