坐姿工作者躯干慢性肌肉骨骼损伤工效学分析

躯干慢性肌肉骨骼损伤(CMI)是坐姿体位工作人群的一类与工作有关疾病．为了研究坐姿体位与颈椎病、肩颈痛和下背痛的联系，文章调查分析了709名坐姿体位、836名坐立交替体位和648名站立体位工作人员躯干CMI患病情况，调查结果表明，坐姿体位人群肩颈和下背部CMI患病率比其他2种体位人群明显升高，不同坐姿体位间患病率也存在差异。结果提示长期坐姿工作是躯干CMI患病危险因素之一，不同坐姿体位对CMI发病也会产生较大影响。

An ergonomical research on chronic musculo-skeletal injury of trunk in sedentary workers

Chronic musculo-skeletal injury (CMI)of trunk is a work-related disease in sedentary workers.In order to study association for sitting posture with cervical spondylosis,shoulder-neck pain and low back pain,709 seated workers,836 seated and standed alternately and 648 standed workers were examined.The result showed that prevalence rate of CMI of shoulder-neck and low back in sitting posture workers was significantly higher than both other groups.There were significant differences in prevalence rates of musculo-sketetal disorders on neck and low back in the variant sitting posture.All above indicated that prolonged and fixed sedentary posture was one of the risk factors of CMI on shoulderneck and low back.The irrational sitting posture was an important contributing factor in the growth of CMI on trunk.