02/01/2026
๐ง How Your Sitting Posture Affects Your Spine ๐ช
Ever wondered why prolonged sitting causes back pain? This visual explains it clearly ๐
๐น When standing, spinal disc pressure is taken as 100% (baseline).
๐น Sitting with a reclined backrest (110ยฐ) slightly increases pressure (~105%).
๐น Sitting upright at 90ยฐ raises disc pressure to ~140%.
๐น Slouched sitting (80ยฐ or less) can spike disc pressure up to ~190% ๐ฑ
๐ฌ Whatโs happening inside the spine?
Poor posture increases compressive load on intervertebral discs
The nucleus pulposus gets pushed backward
Annulus fibrosus experiences higher stress
Intervertebral foramen narrows, increasing nerve compression risk
โ
Take-home ergonomic tips
โ Sit with a slight recline (100โ110ยฐ)
โ Maintain lumbar support
โ Keep feet flat and hips slightly higher than knees
โ Take posture breaks every 30โ45 minutes
๐ Posture is not just about comfort โ it directly affects spinal health.
Protect your discs today to prevent tomorrowโs back pain.