How to Use an Office Chair

Using an office chair requires scientific adjustments based on its functions, combined with regular breaks to maintain health. Here are the specific methods:

1. Basic Adjustment Functions

• Seat Height: Adjust using the hand control (lever or knob) to ensure your feet are flat on the ground, with your thighs and lower legs forming a 95°-100° angle. If the chair is too high, use a footrest; if too low, it increases pressure on the knees. When working on a computer, keep your eyes level with the monitor; when working at a desk, keep your elbows level with the desk surface.
• Seat Angle: Recline slightly to 100°-110°, allowing your back to rest against the chair back. If the chair has a lumbar support, adjust it to support the natural curve of your lower back and avoid a hollow waist.
• Armrest Height: Adjust so that when your elbows hang naturally, your forearms can rest comfortably on the armrests or desk, with your upper and lower arms forming a near 100° angle. If no support is needed, remove or lower the armrests to prevent interference with knee movement.
• Monitor Height: Elevate the monitor so that your eyes are level with the top edge of the screen, avoiding neck strain from forward bending.

2. Adjustments for Special Models

• Sihoo S300: The headrest and backrest are integrated and adjustable forward and backward to fit different heights; the lumbar pillow has a unique design and requires fine-tuning based on the curve of your lower back.
• Hbada Ergonomic Chair Structure Master E3pro:
  • Seat Lift: After leaving the seat, lift the wired controller to move the seat up or down.
  • Recline Lock: Pull the controller backward and lean back to the desired angle, then release to lock; leaning forward returns the backrest to its original position.
  • Footrest: Pull it out and flip it upward to place your feet on it.
  • Seat Depth Adjustment: Pull the controller forward to move the seat cushion, then release to lock the distance.
  • Lumbar Support: Adjust in cycles for height; the control lever locks the front-back position in the upper gear, unlocks adaptive lumbar support in the lower gear, and fixes it again by pulling upward.
  • Backrest and Neck Pillow: Pull with both hands for cyclic height adjustment; the neck pillow supports up-down, front-back movement, and overall rotation.
  • Armrests: Press the button to raise or lower the height.

3. Suggestions for Regular Breaks Take a simple stretch every 30 minutes:

• Hip Stretch: Sit on the edge of the chair, spread your feet, cross your ankles over the opposite knee, and press your back forward.
• Lower Back Release: Turn sideways and gently twist while holding the chair back.
• Shoulder Opener: Sit upright, raise your arms overhead and lean to the opposite side, or hold the chair back with both hands behind you. Alternatively, change your sitting position every 15-30 minutes, such as briefly leaning forward and then returning to an upright position, or adjusting the distribution of your body weight to reduce fatigue from a single posture.