If you have spine flexion problems, use a lumbar roll or rolled up towel to help achieve spinal extension and/or anterior pelvic tilt while sitting on a chair. Also, if the chair's seat is too low and your knees are slightly higher than your hip joint when sitting, then your spine will be pushed into flexion, adding to the problem. Correct the seat height or even bring it slightly too high in an effort to create spinal extension rather than spinal flexion. You can also experiment with a towel under your sit bones, which will rock your pelvis forward, promoting spinal extension.
Find out more about this book:Fixing You: Back Pain: Self-Treatment for Sciatica, Bulging and Herniated Disks, Stenosis, Degenerative Disks, and other diagnoses.