Office Chair Sitting Method

The correct sitting method on an office chair requires considering support for various body parts and dynamic adjustments. The specific key points are as follows:

1. Choose a stable and ergonomic chair
   The chair should firmly support the pressure on the buttocks, preventing the body's center of gravity from shifting due to an overly soft seat or unstable structure. Prioritize office chairs with lumbar support and adjustable features to accommodate different body types.

2. Adjust the chair height and foot support
   The chair height should allow the feet to rest naturally on the ground with the thighs parallel to the ground, avoiding excessive pressure on the blood vessels at the back of the thighs or having the legs hang in the air. If the feet cannot touch the ground, use a footrest or replace the short gas lift for adjustment.

3. Maintain a proper angle between the arms and the desktop
   When the arms are placed flat on the armrests or desktop, the forearms should be parallel to the ground with the elbows bent at about 90 degrees. The height of the office desk should be level with the forearms to avoid shrugging or having the arms hang in the air, reducing shoulder and neck strain.

4. Adjust the screen distance and eye level
   The eyes should be level with or slightly lower than the top of the computer monitor, and the screen should be kept at least an arm's length away (about 50-70 centimeters) from the body to avoid bending over or thrusting the head forward. A monitor stand can be used for assistance in adjustment.

5. Maintain the natural curve of the spine
   Keep the upper body and lower body at an 80-degree to 90-degree angle, with the back straight and fitting against the lumbar support area of the chair back to avoid excessive reclining or leaning forward. If the chair has no lumbar support, use a cushion to fill the gap.

6. Avoid sitting for long periods and take regular breaks
   Get up every 30-45 minutes for simple stretching or walking to promote blood circulation and relieve muscle fatigue.

7. Choose special sitting postures according to the situation

   • Upright sitting: Pair with an ergonomic chair, height-adjustable desk, and monitor stand, adjusting to achieve comfortable support for the neck, back, and waist.
   • Reclined sitting: Requires a leg rest, height-adjustable desk, and monitor stand, suitable for short breaks but not for long-term use.
   • Standing: Achieve a sit-stand switch through a height-adjustable desk to reduce lumbar pressure, but pay attention to proper standing posture.
   • Riding-like sitting: Between sitting and standing, using a high stool or adjustable workbench to keep the spine straight, suitable for scenarios requiring flexible movement.

Core principle: The correct sitting posture should be based on the body's natural relaxation, combined with dynamic adjustments and tool assistance, avoiding maintaining a single posture for a long time, thereby reducing the risk of muscle strain and spinal diseases.