对在机车车辆工作的铁路工作人员,以及不受水平与垂直振动作用的对照组工人,进行脊柱腰、颈部X线照片研究发现,在铁路上工作的劳动条件下会促使脊椎关节病及脊椎关节强硬的发生率增高,有50％的年轻铁路工作人员(21～30岁)出现颈部脊椎关节强硬,对照组为4.8％。据推测,由于振动作用使较活动的脊柱颈部和腰部出现长时期 A study on the spine and neck radiographs of railroad workers working on rolling stock and workers in control groups not subject to horizontal and vertical vibration found that working under conditions of railroad would cause spondyloarthropathies and spine The incidence of joint stiffness increased, with 50% of young railway workers (21-30 years old) showing strong cervical spondylosis compared with 4.8% in the control group. Presumably, the more active spine neck and waist appear longer due to vibration