基于sEMG的受限空间内维修作业肌肉疲劳研究  

Study on Muscle Fatigue of Maintenance Operations in Confined Spaces Based on sEMG

作　　者：冷成杰 易灿南[1] 刘逸帆 龙彬 马鹏 LENG Chengjie;YI Cannan;LIU Yifan;LONG Bin;MA Peng(School of Safety and Management Engineering,Hunan Institute of Engineering,Hengyang Hunan 421002,China)

机构地区：[1]湖南工学院安全与管理工程学院,湖南衡阳421002

出　　处：《安全》2024年第5期72-78,共7页Safety & Security

基　　金：国家级大学生创新创业训练计划项目(S202311528022);湖南省自然科学基金资助项目(2020JJ42643);湖南工学院创新实践项目(第108项);湖南省大学生创新创业训练计划项目(S202311528148)。

摘　　要：为了解受限空间内维修作业人员肌肉疲劳发展特征,避免肌肉疲劳累积,降低肌肉骨骼损伤风险,本文测量维修作业过程中不同作业高度(120cm和140cm)和工作面(正面、侧面和顶面)作业时左右斜方肌、右中三角肌、右冈上肌、右冈下肌和右指伸肌6个肌群的肌肉活动信息,并记录CR10评分;运用统计学分析方法分析不同作业高度和工作面作业中的肌肉疲劳特征。结果表明:高度显著影响右冈下肌和右指伸肌MF值,且显著影响中三角肌、右冈上肌和右冈下肌IEMG值,工作面对所有肌群MF值和IEMG值的影响均不显著;高度显著影响全身、颈部、肩膀以及左腿CR10评分,工作面对全身及身体各部位CR10评分影响均不显著。受限空间内维修作业过程中,高度显著影响肌肉疲劳发展,且140cm作业高度肌肉疲劳累积更明显。正面、侧面和顶面3个工作面,作业人员肌肉疲劳发展不存在显著差异。To explore the development of muscle fatigue for maintenance workers in confined space,avoid muscle fatigue accumulation and reduce the risk of musculoskeletal disorders,the muscle activity information of 6 muscle groups including left and right trapedus muscle,right middle deltoid muscle,right supraspinatus muscle,right infraspinatus muscle and right digital extensor muscle were measured at 2 heights(120cm and 140cm)and under 3 working surfaces(front,side and top)during maintenance work,and the CR10 score was recorded.Then the development of muscle fatigue under different heights and working surfaces were analyzed by statistical analysis method.The results showed that height significantly affected the MF value of right infraspinatus muscle and right extensor finger muscle,as well as the IEMG value of middle deltoid muscle,right supraspinatus muscle and right infraspinatus muscle,while working surfaces had no significant effect on the MF value and IEMG value of all muscle groups.The height significantly affected the CR10 scores of the whole body,neck,shoulder and left leg.The working face,however,were not significant to the CR10 scores of the whole body and body parts.During maintenance work in confined space,the height significantly affects the development of muscle fatigue,the accumulation of muscle fatigue is more obvious at 140cm working height.The development of muscle fatigue under working faces of front,side and top,however,is insignificant.

关 键 词：维修作业 受限空间 肌肉疲劳 肌肉骨骼损伤 

分 类 号：X912.9[环境科学与工程—安全科学]