Lan Fan-Yun, Liou Yuh-Wehn, Huang Kuo-Yuan, Guo How-Ran, Wang Jung-Der
Department of Occupational and Environmental Medicine, National Cheng Kung University Hospital.
J Occup Health. 2016;58(1):118-27. doi: 10.1539/joh.15-0050-FS. Epub 2015 Nov 7.
This study aimed to determine if occupational exposure to whole-body vibration is associated with cervical intervertebral disc herniation among container truck drivers.
We conducted a walk-through survey among container truck drivers and unexposed workers. We also measured the vibration hazard of the container truck over the driver's back and seat when the driver was loading a container and driving the loaded truck.
Among the 38 workers interviewed, 32 were container truck drivers. Four of them reported cervical herniated discs, and all of these individuals were container truck drivers with a job tenure of greater than 10 years. Self-reported cervical herniated disc, nuchal pain, nocturia, arm/forearm weakness, arm/forearm numbness, and finger numbness were significantly more prevalent as the driver's duration of exposure increased (all p values of test for trend <0.05). The vibration of the truck during and after loading a container was considered the main cause of herniated disc. When a container truck was driven with a loaded container, both the vertical and horizontal vibrating acceleration over the seat and back sites exceeded the 8-hr exposure level based on the ISO 2631-1 criteria. The transient vibration dose values (VDVs) measured during misaligned or unsmooth loading operations were usually greater than the upper bounds of the health guidance caution zone for the 8-hr VDV.
Our investigation disclosed a cluster of cervical intervertebral disc herniation that was associated with the vibration hazard during long-term container truck driving under full load and possibly aggravated by misaligned loading operations.
本研究旨在确定集装箱卡车司机的全身振动职业暴露是否与颈椎间盘突出症有关。
我们对集装箱卡车司机和未暴露的工人进行了一次走访调查。我们还测量了司机在装载集装箱和驾驶满载卡车时，集装箱卡车司机背部和座位处的振动危害。
在接受访谈的38名工人中，32名是集装箱卡车司机。其中4人报告患有颈椎间盘突出症，所有这些人都是工作年限超过10年的集装箱卡车司机。随着司机暴露时间的增加，自我报告的颈椎间盘突出症、颈部疼痛、夜尿症、手臂/前臂无力、手臂/前臂麻木和手指麻木的发生率显著更高（所有趋势检验的p值<0.05）。装载集装箱期间和之后卡车的振动被认为是椎间盘突出的主要原因。当驾驶装有集装箱的卡车时，座位和背部位置的垂直和水平振动加速度均超过了基于ISO 2631-1标准的8小时暴露水平。在装载操作未对齐或不顺畅期间测量的瞬态振动剂量值（VDV）通常大于8小时VDV健康指导警示区的上限。
我们的调查发现了一组颈椎间盘突出症，其与长期满载驾驶集装箱卡车期间的振动危害有关，并且可能因装载操作未对齐而加重。
