Traditional Chinese Medicine Recommended Office Chair

From an orthopedic perspective, an ideal office chair should meet the following key criteria:

1. Adjustable backrest support
The angle and curvature of the backrest should be flexibly adjustable, providing precise support for the neck, back, and waist. Specifically, it should meet three key support points:

• Head and neck support: Equipped with an adjustable neck pillow that fits the convex cervical spine curve, preventing cervical fatigue caused by prolonged bowing or tilting of the head.
• Upper back support: Through adjustable curved design, it supports the convex thoracic spine area, reducing the risk of thoracic kyphosis deformity due to improper sitting posture.
• Lower back support: Fitted with an adjustable lumbar pad that conforms to the convex physiological curvature of the lumbar spine, dispersing pressure on the waist and preventing issues such as lumbar disc herniation.

2. Adjustable height for natural body alignment
The seat height should be adjusted according to the user's height, with the following standards:

• Thighs parallel to the ground: Knees bent at approximately 90 degrees, with feet flat on the ground, avoiding impaired lower limb blood circulation due to suspension or excessive knee flexion.
• Head and neck vertically aligned: When operating a computer, the head and neck should remain on the same vertical line, reducing the burden of cervical spine lateral bending or forward tilting.
• Recommended base height: For individuals of average height, the base should be 40-45 cm from the ground (within the range of calf length), with special body types requiring individual adjustments.

3. Equipped with adjustable armrests to share waist pressure
Armrests should meet the following functions:

• Standing support: Provide assistance when standing up, reducing the risk of injury caused by sudden waist exertion.
• Elbow joint support: The height of the armrests should be level with the elbow joints when the arms are naturally hanging down, preventing shoulder and neck muscle tension caused by arm suspension.

4. Sturdy base for stable support
The seat base should be durable and sturdy, avoiding tilting or deformation due to body weight pressure. A sturdy base ensures stable sitting posture and reduces additional stress on the spine caused by shaking.

Summary: When choosing an office chair, priority should be given to backrest support, height adjustment, armrest design, and base stability to ensure compliance with ergonomic principles, thereby reducing the risk of injury to the spine, muscles, and joints from prolonged sitting.