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Work fatigue and physiological symptoms in different occupations of high-elevation construction workers

机译：高海拔建筑工人不同职业的工作疲劳和生理症状

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The objective of this study is to investigate whether work fatigue and physiological symptoms that high-elevation construction workers experience would be affected by the occupations. Questionnaires of demographic data and subjective fatigue symptoms as well as some physiological measurements were carried out, pre- and post-shift, on scaffolders, steel fixers, formworkers, electrician-plumbers, concreters and miscellaneous workers at a high-rise building construction site. This study found that some subjective fatigue symptoms coincide with the life style of some workers and that the extent of fatigue symptoms and physiological strains varies among different occupations of construction workers. Scaffoiders, steel fixers and formworkers are categorized as physically demanding fatigue type of workers, while concreters, electrician-plumbers and miscellaneous workers as general type. The prevalence and occurrence of subjective fatigue symptoms indicate high-elevation workers have more complaints of "projection of physical impairment" than "drowsiness and dullness" and "difficulty in concentration". Some unexpected changes (i.e., post-shift measurements are greater than pre-shift ones) in some strength tests in scaffoiders and concreters were consistent with the observations of how they exercised their bodies during work shift. Considerable variation of average heart rate among occupations was found, with scaffoiders the highest and concreters the lowest. This study concludes that questionnaires of subjective fatigue symptoms and some physiological measurements can be used as indicators to predict the extent of strains or hazards which construction workers encounter. In terms of management program of safety and health, more attention should be paid to those physically demanding workers, such as scaffoiders, workers with lower sense of safety and health, such as miscellaneous workers, and workers with older age, such as concreters.
机译：这项研究的目的是调查高海拔建筑工人所经历的工作疲劳和生理症状是否会受到该职业的影响。在高层建筑施工现场，对脚手架，钢铁固定工，模板工人，电工，水管工，混凝土工和杂工进行了移位前和移位后的人口统计学和主观疲劳症状问卷调查以及一些生理测量。这项研究发现，一些主观的疲劳症状与一些工人的生活方式相吻合，并且疲劳症状的程度和生理压力在建筑工人的不同职业之间有所不同。脚手架，钢架固定工和模板工人被归类为对身体有严格要求的疲劳类型，而混凝土工，电工，水管工和杂项则被归为一般类型。主观疲劳症状的发生和发生表明，高海拔工人对“身体损伤的预测”的抱怨多于“嗜睡和迟钝”和“注意力不集中”。在脚手架和混凝土的一些强度测试中，一些意想不到的变化（即，轮班后的测量值大于轮班前的测量值）与观察他们在轮班期间如何锻炼身体的观察结果一致。在各职业之间发现平均心率有很大的差异，其中，跟骨干者最高，而具体者最低。这项研究得出的结论是，关于主观疲劳症状的问卷和一些生理测量值可以用作预测建筑工人遇到的应变或危害程度的指标。在安全卫生管理方案方面，应更加重视对体力要求较高的工人，如脚手架，安全卫生意识较低的工人（如杂项工人）和年龄较大的工人（如混凝土工）。

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