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遥测肌电图在工效学研究中的应用
The Application of Telemetering EMG in Ergnomics
【摘要】 采用遥测技术对受试者进行了两种负重方式(A 和B)的研究。在负重重量相同(25Kg),但重量在身体上分配不同的情况下,受试者以5Km/h的速度步行1小时。结果表明,在步行1小时期间A 方式IEMG 呈持续性增大,而B 方式IEMG 无持续性增大,并在步行45~60分钟时基本保持稳定。步行后A 方式肌拉力比值相对减小,而B 方式无改变。实验表明,B方式可相对减轻工作肌疲劳,提高肌肉工作能力。
【Abstract】 Participants engaged in this study carried the same load of 25 kgin two diffdrent ways of distribution on the body (A+B).and walkedat a rate of 5km/ h for 1h,with the effects on their IEMG monitoredby telemetery technique.Result of the study showed that those who car-ried the load with method A,had their IEMG increased continuouslyduring the test period,while those carrying the load with method B hadrelatively steady IEMG during the 45th-60th minutes of the study.Therate of muscular pulling force in grorp A decreased after the test,whilethat of group B does not suffer from any changes.These results indicated that carrying load in B way can alleviateworking muscular fatigue and increese the ability of muscular work.
- 【文献出处】 中华劳动卫生职业病杂志 ,Chinese Journal of Industrial Hygiene and Occupational Diseases , 编辑部邮箱 ,1990年02期
- 【被引频次】6
- 【下载频次】19