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用B型超声波技术对纺织厂90名立姿作业女工同时选相同情况的95名坐姿操作女工作为对照组进行子宫位置的检查。以子宫长轴和体轴相交的夹角为测量指标,大于0°为前倾;小于0°为后倾。调查结果提j紊,调查组夹角均位为17.04。,而对照纽为44.96。,两者有显著差别。另外{耳分析了子宫后倾发生比例,立姿组亦大于对照组。严重子宫后倾可引起腰背酸痛,易疲劳。因此认为长期立姿操作是不符合功效学要求的。
Ninety-five female workers working in the same situation at the same time were selected as the control group by B-mode ultrasonic technique to check the location of the uterus. The angle between the long axis of the uterus and the intersection of the body axis is the measurement index, and greater than 0 ° is the forward tilt; less than 0 ° is the backward tilt. Survey results mention j turmoil, the survey group angle average 17.04. , While the control New York 44.96. , There is a significant difference between the two. In addition {ear analysis of the ratio of posterior uterine lean, posture group is also greater than the control group. Severe uterine lean can cause back pain, fatigue. Therefore, it is considered that the long-term standing posture does not meet the efficacy requirements.