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Workers warned to watch posture

Doctors warn that workers who spend most of their day at a desk should be careful to use correct posture when sitting in order to avoid developing back problems.

Chen Hsien-teh (陳賢德), an orthopedic specialist at China Medical University Hospital, said there are three main positions: standing, sitting or reclining. Sitting puts the most pressure on the spine and people who spend long hours sitting down, such as professional drivers, risk developing back trouble.

Shih Shih-liang (施世亮), an orthopedist at Taipei City Hospital, said that intervertebral disks can deteriorate and become less resilient in older people, leading to the growth of bone spurs. If the bones end up impinging on nerves, sitting can become painful.

An investigation by British and Canadian researchers found that the optimal sitting position is with the upper and lower body creating an angle of more than 125o, and not the 90o angle most people assume is best. The optimal position puts less pressure on the spine than sitting straight or hunched over.

However, Chen said that as the optimal position is not very practical for office working conditions, the best solution is not to sit for long periods of time. Employees should remember to get up and walk around from time to time and stretch, which will relieve pressure. They can also use back supports when seated.

Chen Wen-che (陳文哲), director of the orthopedics department at Chang Gung Memorial Hospital, said that many patients don't seek treatment until their condition has become critical.

Most pain comes from incorrect posture, trying to pick up heavy things or fatigue and 90 percent of cases do not require surgery. However, if patients wait too long before seeking help, surgery may become unavoidable.
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