Office Chair Usage Tutorial

Here is the correct usage tutorial for office chairs:

1. Seat Height Adjustment

• Operation Method: Locate the control device (such as a lever, knob, or pneumatic rod) at the bottom or side of the seat. Adjust the height by pulling up, turning, or repeatedly pushing the lever up and down.
• Standard Posture: Adjust until both feet are flat on the ground, with the thighs and lower legs forming an angle of 95° to 100°. If the chair is too high and causes the feet to hang, use a footrest; if it is too low, it increases pressure on the knee joints.
• Scene Adaptation: When working on a computer, keep your eyes level with the monitor. If the monitor height is fixed, adjust the seat height to accommodate it. When working at a desk, ensure your elbows are level with the desk. For prolonged sitting, make sure your feet are flat on the floor.

2. Seat Angle Adjustment

• Recline Angle: Gently recline to an angle of 100° to 110°, allowing your back (especially the lower back) to fit snugly against the chair back. If the chair is equipped with a lumbar support, adjust it to support the natural curve of the lumbar spine and avoid a hollow lower back.
• Core Support: Maintain a natural extension of the spine, avoiding forward leaning or excessive reclining to reduce lumbar pressure.

3. Armrest Height Adjustment

• Standard Posture: Adjust the armrests so that when your elbows hang naturally, your forearms can rest easily on the armrests or desk, with the upper arms and forearms forming an angle of about 100°.
• Flexible Adjustment: If arm support is not needed (e.g., when you need to work close to the desk), remove the armrests or lower their height to avoid obstructing your knees from sliding under the desk.

4. Monitor Height Adaptation

• Adjustment Principle: Elevate the monitor until your eyes are level with the top edge of the screen, forcing the spine to extend naturally and avoiding increased neck pressure from looking down or leaning forward.

5. Special Function Adjustment (Taking Sihoo S300 as an Example)

• Headrest and Lumbar Pillow: The headrest is integrated with the chair back and can be adjusted forward and backward to accommodate different heights. The lumbar pillow supports multi-directional adjustment and should be fixed at the lumbar support point according to personal needs.

6. Suggestions for Activities During Prolonged Sitting

• Hip Joint Stretch: Sit on the edge of the chair, spread your feet apart, cross your ankles over the opposite knee, and gently press your back forward, holding for 10 to 15 seconds.
• Lower Back Release: Lean to one side and hold onto the chair back, gently twist your body towards the chair back, holding for 10 seconds on each side.
• Shoulder Opening Exercise: After sitting up straight, raise one arm over your head and tilt it to the opposite side, or hold onto the chair back with both hands behind you, stretching your shoulder muscles. Repeat each set 5 times.
• Frequency: Get up and move around every 30 minutes to relieve muscle stiffness and prevent injuries from prolonged sitting.

Using an office chair correctly can significantly improve comfort and reduce the risk of lumbar and neck strain. Adjustments should be made flexibly according to individual body type and work scenarios.