Office Chair and Frozen Shoulder

Improper use of office chairs may induce or exacerbate frozen shoulder, which requires improvement through adjusting posture, choosing the right chair, taking regular breaks, and targeted treatment.

Mechanism of Association Between Office Chairs and Frozen Shoulder

Prolonged sitting with poor posture is a significant trigger for frozen shoulder. If the chair height is inappropriate (e.g., too high causing shoulder elevation or too low forcing shoulder protraction), or if the computer screen is positioned incorrectly (e.g., too low requiring prolonged neck flexion), it can directly lead to sustained tension in the shoulder muscles, impaired blood circulation, and subsequent inflammatory conditions. Additionally, a keyboard and mouse placed too far away can force shoulder protraction or rotation, further increasing joint stress and the risk of frozen shoulder.

Preventive Measures

1. Adjust Posture: Maintain an upright back and relaxed shoulders, avoiding shoulder shrugging or rounding. The top of the computer screen should align with eye level to minimize neck flexion and reduce shoulder strain.
2. Choose the Right Office Chair: The chair height should allow the elbows to bend naturally at a 90-degree angle, ensuring the keyboard and mouse are within easy reach to minimize shoulder protraction or rotation. If the chair is not adjustable, use a footrest or cushion for support.
3. Take Regular Breaks: Stand up and move your shoulders and neck for 5 minutes every 45-60 minutes of work. Recommended exercises include chest stretches, shoulder rotations, arm raises to the ears, or rehabilitation exercises like wall climbing or pendulum swings during breaks to promote blood circulation.
4. Supportive Measures: Avoid direct air conditioning drafts on the shoulders in summer and wear a thin shoulder protector in winter for warmth. Choose a pillow of moderate height for sleep to maintain the natural cervical curve and indirectly reduce shoulder strain.

Treatment Options

• Acute Phase: Focus on pain relief and inflammation reduction through physical therapies like heat application or ultrasound, combined with nonsteroidal anti-inflammatory drugs (e.g., ibuprofen) to control symptoms.
• Chronic Phase: Combine traditional Chinese medicine therapies (acupuncture, massage) to unblock meridians and enhance muscle strength through exercise rehabilitation (e.g., shoulder circles, drawing circles) to improve joint flexibility.
• Severe Cases: If conservative treatment fails for 3-6 months, consider arthroscopic surgery to release adhesions and restore joint mobility.

Maintain a balance between work and rest, avoid excessive shoulder strain, undergo regular shoulder examinations, and adjust treatment plans promptly.