Back Pain from Sitting in Office Chairs

Back pain from sitting in office chairs can be caused by poor posture, muscle strain, lumbar disc herniation, spinal facet joint disorders, or improper chair design. Targeted adjustments to posture, improved chair support, and rehabilitation measures are needed to alleviate it.

1. Poor Posture
   Incorrect sitting posture is the most common cause of back pain. When bending forward, slouching, or leaning to one side, the muscles and ligaments in the back experience an imbalance in force. Some muscles remain continuously tense, while others are overstretched, leading to the accumulation of local metabolic waste and triggering soreness. Adjustment Method: Maintain the natural physiological curvature of the spine, relax the shoulders, keep the feet flat on the ground, align the computer screen with the line of sight, and avoid looking down or extending the neck forward for long periods.

2. Muscle Strain
   Prolonged fixed sitting positions cause the back muscle groups to continuously contract to maintain trunk stability, which can easily reduce blood supply to the muscles and accumulate minor fiber damage, resulting in soreness, stiffness, and tenderness upon pressure. Relief Measures: Get up and move every 30 - 60 minutes, performing stretching exercises such as chest expansions and waist rotations; use an ergonomic chair to reduce the continuous load on the muscles.

3. Lumbar Disc Herniation
   Prolonged sitting increases the pressure inside the intervertebral discs. When the fibrous ring ruptures, the nucleus pulposus protrudes and compresses the nerve roots, causing deep back pain, which may be accompanied by numbness in the lower limbs or radiating pain. Recommendations: If the pain persists or worsens, seek immediate medical attention for imaging examinations (such as an MRI); avoid lifting heavy objects or sudden bending movements in daily life, and use a chair with an adjustable lumbar support to support the lumbar spine.

4. Spinal Facet Joint Disorders
   The small joints at the back of the spine may experience minor dislocations or impingements under prolonged fixed postures. The irritated joint capsules trigger localized pain, which worsens during movement and improves after rest. Treatment Methods: Relax the muscles around the joints through hot compresses and massages; undergo spinal adjustments or physiotherapy under the guidance of a professional physician.

5. Improper Chair Design
   An improperly designed chair, such as one with an inappropriate height that causes the shoulders to hunch up, a backrest that leaves the lower back unsupported, or a lack of lumbar support, can exacerbate spinal pressure. Optimal Selection: Choose a chair with good lumbar support, ensuring that the elbows are at a 90 - degree angle and level with the desktop, and that the core lumbar support of the backrest presses against the lower back; the seat depth should allow the thighs to fully fit against the seat surface, preventing the buttocks from sliding forward.

Daily Prevention and Rehabilitation:

• Hot Compress and Massage: Apply a hot towel or warm water bag to the painful area to promote blood circulation; gently massage to relax tense muscles.
• Stretching Exercises: Perform yoga poses such as the "Cat - Cow Pose" and "Child's Pose" daily to enhance back flexibility.
• Indications for Medical Attention: If the pain persists for more than 2 weeks, is accompanied by fever or weight loss, or if there is weakness in the lower limbs or problems with urination or defecation, seek immediate medical attention to rule out serious diseases.