| 表面肌电和心电评价手工搬举技术的实验研究 |
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| 引用本文： | 王正伦,李俊君,陈松林,孙敬智,杨磊. 表面肌电和心电评价手工搬举技术的实验研究[J]. 工业卫生与职业病, 2009, 0(2) |
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| 作者姓名： | 王正伦 李俊君 陈松林 孙敬智 杨磊 |
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| 作者单位： | 华中科技大学同济医学院公共卫生学院; |
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| 基金项目： | 教育部博士点基金(20050487055);;华中科技大学校基金(20071204) |
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| 摘 要： | 目的探讨表面肌电和心电技术评价不同手工搬举下腰背部竖脊肌的劳动负荷,以期获得最佳搬举技术。方法30名大学生志愿者在实验室模拟手工搬举作业,分别测定和分析蹲举、背举和半蹲举的左、右侧胸10水平竖脊肌(LT10、RT10)和腰3水平竖脊肌(LL3、RL3)表面肌电、心率和Borg量表分值的变化情况。结果3种搬举技术下,男性LT10、RT10和女性LL3、RL3竖脊肌表面肌电幅度均方根值的最大随意收缩百分比(percentage of maximum voluntary electrical activation,MVE%)均较休息时高(P<0.05)。男性LT10、LL3和女性RT10、LT10的MVE%在蹲举时最高(P<0.05)。女性RL3的MVE%在半蹲举时最低(P<0.05),而女性LL3的MVE%在背举时最低(P<0.05)。男性LT10和女性LT10、LL3的中位频率(MF)均高于休息时的值(P<0.05),而男性、女性RL3的MF值均低于休息时的值(P<0.05)。3种搬举技术下,男性、女性的MF值无统计学意义。与休息时比较,3种搬举技术下,男性、女性心率均高于休息时的值(P<0.05)。男性、女性...
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| 关 键 词： | 搬举技术 竖脊肌 表面肌电描记术 心电描记术 Borg量表 |
Experimental Study on Assessment of Manual Lifting Techniques by Surface Electromyography and Electrocardiography |
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| WANG Zheng-lun,LI Jun-jun,CHEN Song-lin,SUN Jing-zhi,YANG Lei. Experimental Study on Assessment of Manual Lifting Techniques by Surface Electromyography and Electrocardiography[J]. Industrial Health and Occupational Diseases, 2009, 0(2) |
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| Authors: | WANG Zheng-lun LI Jun-jun CHEN Song-lin SUN Jing-zhi YANG Lei |
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| Affiliation: | School of Public Health;Tongji Medical College;Huazhong University of Science & Technology;Wuhan 430030 China |
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| Abstract: | Objective To investigate the using of surface electromyography(sEMG)and electrocardiography(ECG)in evaluation of lower back erector spine workload in different manual lifting techniques,so as to find out the optimal lifting technique.Methods 30 student volunteers simulated manual lifting in the laboratory.Then the sEMG signals of the left and right chest 10 level(LT10 and RT10) and waist 3 level(RL3 and LL3) erector spine muscles(ES),heart rates(HRs),and the values of Borg scale in three manual lifting tech... |
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| Keywords: | Lifting technique Erector spine muscle Surface electromyography Electrocardiography Borg scale |
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