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SEMG-based research of upper body muscle fatigue during manual material handling

机译：基于SEMG的上身肌肉疲劳研究手动材料处理

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摘要

The upper body muscles frequently contract during manual material handling tasks, and muscle fatigue could arise during the repetitive contraction. To explore the muscle fatigue within arm, shoulder and back during material handling, 11 male graduate students were chosen as subjects to simulate furniture boards handling task. In the experiment, the vertical lifting distance, set three levels, was the single test variable. Through analysing normalised average electromyography (Normalised AEMG) and mean power frequency (MPF) of the electromyography signal collected during the experiment, found that the biceps brachii muscle the most relaxed, and the multifidus muscle the most fatigable. In order to reduce waist muscle load, it is suggest that operators increase their use of arm strength during material handling, optimising work posture.
机译：在手动材料处理任务期间，上身肌肉经常合同，并且在重复收缩期间可能会出现肌肉疲劳。 为了探讨手臂内的肌肉疲劳，肩部和背部在物料搬运期间，选择11名男研究生作为模拟家具板处理任务的主题。 在实验中，垂直提升距离设定三个级别，是单个测试变量。 通过分析实验期间收集的归一化平均肌电图（归一化AEMG）和归一化AEMG）和平均功率频率（MPF），发现二头肌Brachii肌肉最宽松，而Multififus肌肉最贫瘠。 为了减少腰部肌肉负荷，建议操作员在材料处理过程中增加了臂强度的使用，优化了工作姿势。

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