A friend told me years ago that her Orthopedic Doctor told her if she would switch to her left foot to sew with, her back wouldn't hurt as much when she sewed. (I guess if you ordinarily sew with your left foot, you would switch to your right foot) Anyway, I tried it for a while and it does seem to work, but lately, not as much as it once did. If I am sewing for a few hours now, I place a pillow to the back of my chair and drape a heating pad over the pillow. Once in a while I will lean back and rest my back against the pillow, and it feels so good!.........and it allows me to sew a while longer.