Torma-Krajewski Janet, Wiehagen William, Etcheverry Ann, Turin Fred, Unger Richard
Pittsburgh Research Laboratory, National Institute of Occupational Safety and Health, Arvada, Colorado, USA.
J Occup Environ Hyg. 2009 Oct;6(10):D55-62. doi: 10.1080/15459620903146636.
Job tasks that involve exposure to work-related musculoskeletal disorder (WMSD) risk factors may impact both the risk of injury and production downtime. Common WMSD risks factors associated with mining tasks include forceful exertions, awkward postures, repetitive motion, jolting and jarring, forceful gripping, contact stress, and whole body and segmental vibration. Mining environments that expose workers to temperature/humidity extremes, windy conditions, and slippery and uneven walking surfaces also contribute to injury risk. National Institute for Occupational Safety and Health (NIOSH) researchers worked with powder crew members from the Bridger Coal Company to identify and rank routine work tasks based on perceived exposure to WMSD risk factors. This article presents the process followed to identify tasks that workers believed involved the greatest exposure to risk factors and discusses risk reduction strategies. Specifically, the proposed prill truck design changes addressed cab ingress/egress, loading blast holes, and access to the upper deck of the prill truck.
涉及接触与工作相关的肌肉骨骼疾病（WMSD）风险因素的工作任务，可能会影响受伤风险和生产停机时间。与采矿任务相关的常见WMSD风险因素包括用力过度、姿势 awkward、重复动作、颠簸和震动、用力抓握、接触压力以及全身和局部振动。使工人暴露于极端温度/湿度、有风环境以及湿滑和不平坦行走表面的采矿环境，也会增加受伤风险。美国国家职业安全与健康研究所（NIOSH）的研究人员与布里杰煤炭公司的粉状物料处理人员合作，根据对WMSD风险因素的感知暴露程度，对日常工作任务进行识别和排序。本文介绍了识别工人认为涉及最大风险因素暴露的任务所遵循的过程，并讨论了风险降低策略。具体而言，提议的颗粒卡车设计变更涉及驾驶室进出、装填炮孔以及进入颗粒卡车的上层甲板。
