How to Use an Office Chair

The use of an office chair requires reasonable adjustments based on different functions to ensure comfort and a healthy sitting posture. Here are the specific methods:

Seat Height Adjustment

Ensure that both feet are completely flat on the ground, with the thighs and lower legs forming an angle of 95 to 100 degrees. Adjust using the hand control device: pull up the lever or turn the knob. You can also adjust from a standing position so that the front of the chair is just below the knees. If the chair is too high and causes the feet to hang in the air, use a footrest. If the chair is too low, it will increase the pressure on the knee joints, and long-term use may cause pain.

Sitting Angle Adjustment

Maintain a slightly reclined posture, with the backrest and body forming an angle of 100 to 110 degrees, so that the back, especially the lower back, fits snugly against the backrest. If the chair is equipped with a lumbar support, adjust it to the position that supports the natural curve of the lumbar spine to avoid the lower back hanging in the air. This angle can disperse the pressure on the spine and reduce fatigue from prolonged sitting.

Armrest Height Adjustment

The height of the armrests should match the position of the elbows when they are naturally hanging down, ensuring that the forearms can be easily placed on the armrests or the desktop, with the upper arms and forearms forming an angle close to 100 degrees. If the armrests are too high, it will cause tension in the shoulders; if they are too low, it may cause fatigue from the arms hanging in the air.

Monitor Height Adjustment

Raise the monitor to the position where the line of sight is level with the top edge of the screen, forcing the spine to stretch naturally and avoiding neck forward tilt caused by looking down or leaning forward. This adjustment can reduce the pressure on the neck and shoulders and prevent the problem of "computer neck."

Special Function Usage

• Headrest and Lumbar Pillow: The headrests of some office chairs are integrated with the backrest and can be adjusted forward and backward. Adjust them to the head support position according to your height. Lumbar pillows come in various designs, and you need to adjust the support point according to the curve of the lumbar spine.
• Executive Chair Functions: Executive chairs are usually equipped with two control levers. The right lever controls the height adjustment (lightly lift to raise and press down to lower while sitting, adjusting to a position where the knees are at 90 degrees and the feet are flat on the ground for maximum comfort). The left lever controls the backrest recline force (lift to recline, lock the angle, and then release. For advanced models, you can adjust the recline tightness with a knob).

Regular Breaks

Take a simple stretch every 30 minutes using the chair:

• Hip Joint Stretch: Sit on the edge of the chair, spread your feet apart, cross your ankles over to the opposite knee, and press your back forward.
• Lower Back Relief: Turn sideways, hold the back of the chair with your hand, and gently twist your body.
• Shoulder Opening Exercise: Sit up straight, raise your arms over your head and tilt to the opposite side, or hold the back of the chair with both hands behind you to stretch your shoulders. These movements can relieve muscle tension and prevent poor blood circulation and muscle stiffness caused by prolonged sitting.