Make sure your back and buttocks sit against the back of the chair. It is a good idea to keep the spine moving throughout the day to prevent stiffness in the vertebrates involved with sciatica (l4-s4).
[header] How to prevent and manage sciatic pain [title] Stand up straight with your ears aligned with your shoulders. [step] Sitting puts extra stress on your lower back. Sit with your knees slightly elevated to reduce pressure on your spine.