Back Pain from Office Chair

Back pain caused by office chairs can result from poor posture, muscle strain, lumbar disc herniation, spinal facet joint disorders, or issues with chair design, requiring targeted adjustments and improvement measures.

1. Poor Posture
   Maintaining incorrect postures such as slouching, leaning forward, or leaning sideways for extended periods can lead to an imbalance in the forces on the back muscles and ligaments. Some muscles remain continuously tense, while others are overstretched, causing muscle fatigue and pain. It is recommended to maintain proper sitting posture: keep your buttocks against the back of the chair, support the natural curve of your lower back with a cushion, place your feet flat on the ground, and keep your knees slightly lower than your hips to reduce muscle strain.

2. Muscle Strain
   A fixed sitting position causes the back muscle groups to continuously contract to maintain trunk stability, making them prone to strain, which manifests as soreness, stiffness, and tenderness upon pressure. You can relax the muscles and improve local blood circulation through hot compresses, massages, or appropriate stretching exercises. For example, get up every hour to do chest expansion exercises or waist twists to relieve muscle tension.

3. Lumbar Disc Herniation
   Prolonged sitting increases the pressure inside the intervertebral discs. Long-term pressure can lead to the rupture of the fibrous ring and the protrusion of the nucleus pulposus, compressing the nerve roots and causing radiating pain in the back and lower limbs. If the pain is accompanied by numbness or radiating pain in the lower limbs, seek medical attention immediately to clarify the cause through imaging examinations and avoid delaying treatment.

4. Spinal Facet Joint Disorders
   Prolonged fixed postures can cause minor dislocations or impingements of the small joints at the back of the spine, leading to localized pain that can be partially relieved by movement. Physical therapy, manual adjustments (such as bone-setting), and back muscle exercises can help restore joint position and enhance spinal stability.

5. Chair Design Issues
   Improper chair height (such as shrugged shoulders, an unsupported backrest, or no lower back support) can cause the lumbar spine to hang in the air, exacerbating discomfort. It is recommended to choose an ergonomic office chair that ensures your elbows are at a 90-degree angle and level with the tabletop, with the lumbar support pressing against your lower back; or use a lumbar cushion to maintain the natural curve of the lumbar spine and reduce lumbar pressure.

Comprehensive Improvement Suggestions:

• Get up and move for 5-10 minutes every 45-60 minutes of sitting to avoid prolonged fixed postures;
• Regularly engage in exercises such as swimming or brisk walking to strengthen the back muscle groups and improve muscle endurance;
• If the pain persists or worsens, seek medical attention promptly to clarify the cause and avoid masking the condition through self-treatment.