Daytime trapezius muscle activity and shoulder-neck pain of service workers with work stress and low biomechanical exposure
Daytime trapezius muscle activity and shoulder-neck pain of service workers with work stress and low biomechanical exposure
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DOI：
10.1002/ajim.10039
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发表时间：
2002-05-01
影响因子：
3.5
通讯作者：
Westgaard, RH
中科院分区：
文献类型：
--
作者：
Holte, KA;Westgaard, RH
目的探讨在工作压力和生物力学暴露程度较低的工作环境下，斜方肌活动与肩颈疼痛之间的关系。方法女性受试者93人，分别来自保健、店员、银行和大学秘书四个职业组。38名工人接受了采访，并被归类为疼痛--根据他们过去6个月的肩颈疼痛评分而受到影响；55名工人没有疼痛。通过重复每小时测量超过24小时，监测肩颈疼痛、身体紧张和疲劳状态以及主观暴露评估。用表面肌电信号记录双侧斜方肌的活动。结果随着工作时间的延长，肩颈疼痛、感觉紧张、工作压力(“应激环境”)和精神疲劳增加，休闲时间减少。体力疲劳度低且稳定。因此，工作压力似乎是与肩颈疼痛相关的主要暴露。疼痛受试者和无疼痛受试者在工作时间肌肉活动较低且相似。结论应激性肩颈疼痛不一定与斜方肌活动增加有关，但无疼痛的工作者可能受益于休闲时较好的肌肉放松。(C)2002年Wiley-Liss，Inc.
Aim The study aims to look for an association between trapezius muscle activity and shoulder-neck pain in work situations characterized by work stress and low biomechanical exposure.Methods Female subjects (n = 93) were recruited from four occupational groups: health care, shop assistants, banking, and university secretaries. Thirty-eight workers were interviewed and classified as pain-afflicted by their shoulder-neck pain score in the last 6 months; 55 were pain-free. Shoulder-neck pain, bodily state of tension and fatigue, and subjective exposure assessments were monitored by repeated hourly measurements over 24 hr. Trapezius muscle activity was recorded bilaterally by surface EMG.Results Shoulder-neck pain, perceived tension, work stress ("stressful environment"), and mental fatigue was augmented over the workday and reduced leisure time. Physical fatigue was low and stable. Thus, work stress appeared to be the dominant exposure associated with shoulder-neck pain. Muscle activity was low and similar for pain-afflicted and pain-free subjects during working hours. It was unchanged from work to leisure for the pain-afflicted workers and was significantly reduced for the pain-free group.Conclusions Stress-induced shoulder and neck pain is not necessarily associated with elevated trapezius muscle activity, but pain-free workers may benefit from better muscle relaxation in leisure. (C) 2002 Wiley-Liss, Inc.