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本文通过肌电图对17例VDT操作者不同作业姿势前臂负荷进行实验室研究,发现前臂与水平面成0°角时,肌电积分伍最小,此时肌肉负荷最小。-5°～+10°时肌电积分值较小,且彼此间不存在显著性差异。而+20°,+30°,-10°,-20°,-30°肌电积分伍明显高于0°(P<0.05)。提示前臂与水平面夹角在-5～+10°范围内肌肉负荷较小,可考虑为推荐的VDT作业前臂姿势。
In this paper, 17 cases of VDT operator manipulative posture forearm load by laboratory research, found that the forearm and the horizontal plane into a 0 ° angle, the EMG minimum, at this time the minimum muscle load. -5 ° ~ +10 ° when the EMG score is small, and there is no significant difference between each other. However, the EMG scores at + 20 °, + 30 °, -10 °, -20 ° and -30 ° were significantly higher than 0 ° (P <0.05). Tip forearm and horizontal angle in the -5 ~ +10 ° range of muscle load is small, can be considered as recommended VDT work forearm posture.