Ergonomic risk factors for the wrists of hairdressers
Ergonomic risk factors for the wrists of hairdressers
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DOI：
10.1016/j.apergo.2009.05.001
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发表时间：
2010-01-01
影响因子：
3.2
通讯作者：
Chen, Chih-Yong
中科院分区：
文献类型：
--
作者：
Chen, Hsieh-Ching;Chang, Cha-Mei;Chen, Chih-Yong
这项研究利用便携式数据记录器测量了21名发型师的手腕角度以及前臂屈肌和伸肌肌电图（EMG）。理发师被分为两组，一组有11名理发师（9名男性和2名女性）专门从事男性理发，另一组有10名理发师（2名男性和8名女性）专门从事女性理发。标准理发任务分为三个子任务：剪发、洗头和吹干。对总体任务和子任务的机械暴露进行量化，以比较子任务、职业组和性别组的差异。实验结果表明，女性完成理发的平均时间（51.4分钟）显著长于男性理发的平均时间（35.6分钟）（p < 0.005）。女性发型师的肌电活动显著高于男性发型师（p < 0.001）。理发师的非优势手的总腕关节速度显著高于理发师（p < 0.005）。分析结果表明，女性理发师的相对较高的用力和手腕速度加上长时间的暴露，可能是女性理发师比男性理发师手/手腕疼痛率高的原因。(C)2009爱思唯尔有限公司版权所有。
This study utilized a portable data logger to measure the wrist angles and forearm flexor and extensor electromyography (EMG) of 21 hairstylists. The hairstylists were divided into two groups, one with 11 barbers (9 males and 2 females) specializing in men's hairdressing, and one with 10 hairdressers (2 males and 8 females) specializing in women's hairdressing. The standard haircut task was divided into three subtasks: hair cutting, washing and blow-drying. The mechanical exposures of the overall task and subtasks were quantified to compare how subtasks, occupational groups, and gender groups differ. Experimental results show that the average time to finish a woman's haircut (51.4 min) is significantly longer than that for a man's haircut (35.6 min) (p < 0.005). Female hairstylists had significantly greater EMG activity than male hairstylists did (p < 0.001). The non-dominant hands of hairdressers have significantly higher overall wrist velocity than those of barbers (p < 0.005). Analytical results suggest that the relatively higher force exertion and wrist velocity of female hairstylists combined with prolonged exposure may account for the higher rate of hand/wrist pain in female hairdressers than in male barbers. (C) 2009 Elsevier Ltd. All rights reserved.