I have lower back pain from a torn lumbar disc and like to do many tasks standing up because sitting long periods of time is sure to make me hurt. I've tried sewing while standing up, but after a few minutes my hip starts hurting on the opposite side that I use the foot pedal. I know from past experience it's because it's throwing my pelvis off level to have one foot lifted and pressing down on the foot pedal. I probably need to work for awhile with the other foot on a book to bring them both at the same level to find out if that would help. For now, I do everything else in sewing while standing and work on about 36" high tabletops or counters.