Workplace Health Portal
Desk Ergonomics Guide
An unconditioned workstation forces the cervical and lumbar muscles into static fatigue, leading to disc pressure, muscle spasm, and nerve impingement.
Step 1: Seat Height & Pelvic Position
- Keep feet flat on the floor: If feet do not rest comfortably, integrate a solid footrest.
- Knee angle: Maintain knees at 90 degrees or slightly below hip level to prevent posterior pelvic tilt.
- Thigh clearance: Ensure 5-8cm between the front edge of the seat pan and the back of your knees.
Step 2: Backrest and Lumbar Support
- Ensure contact: Seat backrest must firmly support the natural curve of your lumbar region.
- Backrest tilt: Set the chair backrest tilt between 100 and 110 degrees to distribute disc pressure.
- Use armrests: Adjust armrests to support forearm weight without forcing shoulders to shrug.
Step 3: Monitor & Keyboard Placement
- Screen height: Place the top third of the monitor screen directly at horizontal eye level.
- Screen distance: Position the display approximately 50-70cm from your face (arms-length).
- Keyboard/Mouse angle: Maintain hands, wrists, and forearms in a straight, neutral horizontal line.
The Standard 30/30 Rest Interval
Even with a perfect ergonomic setup, prolonged sitting is biologically detrimental to spinal discs. Adopt the 30/30 clinical habit: for every 30 minutes of sitting, stand up and perform gentle mobility movements or take a short walk for at least 30 seconds. This maintains essential disc fluid perfusion.
Seek Clinical Posture Guidance
If workstation modifications fail to relieve your occupational neck, shoulder, or lower back pain, contact Dr Aliashkevich for professional evaluation.