Sierra

I have had a sacrum problem and for years sat on one of those "exercise balls", as suggested by my orthopedic surgeon. Every body's problem is different and I advise you to borrow different types of chairs and try them out before going out and buying one. Also, the 90 degree approach didn't work for me because my upper back has issues and will begin to hurt like crazy.... now I use a desk chair set low that has give when I sit and looks like the one in the picture on page 1 here) so I don't have to bend so much (that's just me, of course). My table is higher than usual. You need to try different things until you find what seems to offer comfort, and it may be two different approaches so you can switch back and forth.

Also, what has made a big difference for me is stretching... we live in an upstairs apartment and use stairs going up. I grab each banister (we put up a second one) and let my body fall forward (up the stairs) and the relief I experience in upper back pain is wonderful. Leg strecthes (putting one foot up 4 steps and leaning forward) help me a lot, too. I try to use the stairs every hour or so and this allows me to sew and quilt for much longer periods of time. Also, I've been taught to sit gently instead of "falling" into a chair! Sounds silly, but it's made a difference! Bottom line is try to get as good advice as you can for your particular problems and try out the solutions you think might work. Good luck!