Breloff Scott P, Carey Robert E, Dutta Amrita, Sinsel Erik W, Warren Christopher M, Dai Fei, Wu John Z
National Institute for Occupational Safety & Health, Centers for Disease Control and Prevention, Health Effects Laboratory Division, 1095 Willowdale Rd, Morgantown, WV, 26505, USA.
West Virginia University, Department of Civil & Environmental Engineering, Morgantown, WV, 26506, USA.
Int J Ind Ergon. 2020 May;77. doi: 10.1016/j.ergon.2020.102945.
Trunk musculoskeletal disorders are common among residential roofers. Addressing this problem requires a better understanding of the movements required to complete working tasks, such as affixing shingles on a sloped residential roof. We analyzed the extent to which the trunk kinematics during a shingling process are altered due to different angles of roof slope. Eight male subjects completed a kneeling shingle installation process on three differently sloped roof surfaces. The magnitude of the trunk kinematics was significantly influenced by both slope and task phase of the shingling process, depending on the metric. The results unequivocally point to roof slope and task phase as significant factors altering trunk kinematics. However, extension of the results to roofing workers should be done carefully, depending on the degree to which the study protocol represents the natural setting. Future studies on shingle installation in residential roofing should absolutely consider capturing a wider array of shingling procedures in order to encapsulate all the possible methods that are used due to the lack of a standardized procedure.
躯干肌肉骨骼疾病在住宅屋顶工中很常见。解决这个问题需要更好地了解完成工作任务所需的动作，比如在倾斜的住宅屋顶上铺设屋瓦。我们分析了在铺设屋瓦过程中，由于屋顶坡度不同，躯干运动学改变的程度。八名男性受试者在三个不同坡度的屋顶表面上完成了跪姿屋瓦安装过程。根据测量指标，躯干运动学的幅度在铺设屋瓦过程中受到坡度和任务阶段的显著影响。结果明确指出屋顶坡度和任务阶段是改变躯干运动学的重要因素。然而，将结果推广到屋顶工人时应谨慎，这取决于研究方案代表自然环境的程度。未来关于住宅屋顶屋瓦安装的研究绝对应该考虑涵盖更广泛的屋瓦铺设程序，以便在缺乏标准化程序的情况下囊括所有可能使用的方法。
