Sitting Upright with the Spine Fix: A Beginner's Guide

Hours of sitting — at a desk, over books, at the dining table or in the car — often end in the same slouch: hips sinking, pelvis rolling back and the lower back rounding. The Spine Fix is a simple sitting aid designed to help. You keep it on your chair, and it elevates your hips slightly higher than your knees, so sitting with a straight back takes less effort.

Why hips above knees?

When your hips are level with or lower than your knees, the pelvis tends to tilt backwards and the lower back loses its natural curve. Lifting the hips a little higher than the knees helps the pelvis stay upright, so the spine can stack more naturally from the base. It is a small change in position that many people find makes upright sitting feel easier and more comfortable.

Not a back brace

The Spine Fix is not worn, strapped on or used to hold your spine in place. It simply sits on your chair and changes how you sit. Despite its name, it is a comfort and posture-support aid — not a treatment for any spinal condition.

Setting it up

1. Place it on your chair as shown in your session, so your hips will rest slightly above your knees.
2. Sit well back with your feet flat on the floor or a footrest.
3. Lengthen up — relaxed shoulders, open chest, head balanced over your shoulders.
4. Take movement breaks every 30–45 minutes: stand, walk and stretch.

Where it helps most

Desk-job professionals can keep it on the office chair through long screen hours. Students can use it on a study chair instead of slouching over books. Seniors (55+) may find it helpful on a dining or reading chair — as long as the feet rest flat and getting up stays easy and safe.

We introduce the Spine Fix alongside posture habits from Dorn Therapy and props-based yoga. For more everyday tips, read our desk posture guide.

Published 5 October 2026 · Last reviewed 5 October 2026