草原公路驾驶人腰部疲劳恢复的表面肌电分析  

Surface EMG based analysis of recovery from lumbar fatigue for driver on prairie highway

作　　者：王玉化 戚春华[1] 朱守林[1] 解松芳[1] WANG Yuhua;QI Chunhua;ZHU Shoulin;XIE Songfang(College of Energy and Traffic Engineering,Inner Mongolia Agriculture University,Hohhot Inner Mongolia 010018,China)

机构地区：[1]内蒙古农业大学能源与交通工程学院

出　　处：《中国安全科学学报》2018年第5期6-11,共6页China Safety Science Journal

基　　金：国家自然科学基金资助(51768057)

摘　　要：为研究草原公路驾驶人腰部肌肉疲劳恢复特性,在草原公路模拟驾驶环境开展腰部疲劳恢复试验。利用MP150多通道生理测试仪采集驾驶人试验前、驾驶结束时和疲劳恢复阶段的腰部肌电信号,并应用配对样本t检验和独立样本t检验进行统计分析,探讨草原公路驾驶人腰部肌肉疲劳恢复特征。结果表明：在驾驶疲劳恢复期,时域指标平均振幅值（AEMG）、积分肌电值（IEMG）和均方根值（RMS）随恢复时间而增大,频域指标中位频率值（MF）和平均功率频率值（MPF）则随之减小;各指标在疲劳恢复初期恢复较快,当驾驶人疲劳恢复程度达到80%左右时,其在之后同等时间段内肌电各指标的恢复能力趋于平缓;2 h组腰部竖脊肌的表面肌电（sEMG）指标在恢复期第18 min与静测无显著差异,4 h组在恢复期第27 min与静测无显著差异。To study the characteristics of recovery from waist muscle fatigue for drivers driving on the prairie highway,drivers ＇ lumbar muscle recovery experiments were carried out in a simulated grassland highway driving environment. The waist electromyographic signal was collected before the test,the end of the driving and fatigue recovery phase by MP150 multi-channel physiological tester acquisition. The paired sample t-test and independent sample t-test statistical analysis were carried out,drivers waist muscle fatigue recovery characteristics were discussed on the prairie highway. The results show that there is a positive correlation between the time-domain indices（ AEMG,IEMG and RMS of sEMG） and the recovery time,and there is a negative correlation between the frequency domain indices（ MF and MPF）and the recovery time. Recovery rate is inversely proportional to recovery time.

关 键 词：草原公路 交通安全 恢复时间 表面肌电(sEMG) 腰部竖脊肌 驾驶疲劳 

分 类 号：X912[环境科学与工程—安全科学] U491[交通运输工程—交通运输规划与管理]