Mother was right. Good posture is important, especially when you are using your body in a repetitive motion such as weaving. I know from personal experience how extremely important ergonomics and good body mechanics are.
In 1990, after weaving for 20 years, I ruptured a disc in my lower back. The physicians agreed it was from the repetitive motion of weaving, the lifting of heavy harnesses and twisting associated with throwing the shuttle. So my advice comes from experience.
Here is an article that I wrote for Handwoven Magazine, March April 1993. You can read what I learned and how I made the necessary changes, so that now, 20 years later I am weaving with no pain, no problems and a healthy back. Click on the article and you can read it!
I made two significant changes in my studio after the back injury. I switched to an air dobby, so with the 56" loom I no longer use my legs and lower back to power up the harnesses. You can read more about this system in a March 2009 blog posting.
I also find that a daily practice of some kind of stretching is crucial to maintaining good body health. (I practice yoga.) I LOVE to weave, so I am faithful to the changes I have made. These changes make the difference to me between weaving with a healthy back and not weaving at all. What do you do??
PS~~~ We have had a streak of bad weather here. Lost power for 3 days. The shop is still closed as of today (Mar 1st). So for those of you waiting for quote, info or a response from me...hang in there!