滑囊是一种封闭的结缔组织小囊,扁平而壁薄,内含少量滑液,多位于肌腱与骨面相接触之处,具有促进润滑,减少摩擦,增加运动灵活性之作用。煤矿井下工人,尤其是乡镇煤矿,机械化程度低,劳动卫生条件差,工人劳动强度大。因工作环境所迫,矿工在井下必须匍匐爬行,采掘出来的 Bursa is a closed connective tissue capsule, flat and thin wall, containing a small amount of synovial fluid, mostly located in contact with the tendon and bone surface, with the promotion of lubrication, reduce friction and increase the role of motor flexibility. Underground miners, especially township coal mines, have a low degree of mechanization, poor sanitary conditions and workers’ labor intensity. Due to the work environment forced, miners must creeping crawl underground, mining out