摘要
随着社会的发展地铁低头族已经在地铁上随处可见,为研究地铁低头族颈部肌肉疲劳与低头时间的变化关系,本文基于幅频联合分析法提出颈部肌肉疲劳评价模型。实验中共招募10名参试人员分别采集其颈部肌肉的表面肌电信号,利用疲劳联合分析模型对不同时间段内颈部肌肉的疲劳程度做出比较。实验结果显示,斜方肌和头夹肌的通道中中位频率值处于下降趋势,而均方根值处于上升趋势,说明肌肉产生疲劳并随着低头使用手机时间的增加颈部肌肉疲劳程度逐渐增加。该实验验证了疲劳评价模型的有效性,模型可对乘客发出疲劳提醒,帮助乘客形成良好的行为习惯,为开发智能穿戴系统提供依据。
With the development of society,subway phubbers have been seen everywhere on the subway.To analyze the relationship between neck muscle fatigue and bowing time of subway phubbers,this study proposes a neck muscle fatigue evaluation model based on the amplitude–frequency joint analysis method.In the experiment,10 participants were recruited to collect the surface electromyogram signals of their neck muscles.The fatigue degree of their neck muscles in different time quanta was compared with the fatigue joint analysis model.Results showed that the median frequencies of the trapezius and scalp muscle exhibited a downward trend,whereas the root–mean–square values exhibited an upward trend,indicating that muscle fatigue was obvious.Moreover,the fatigue degree of the neck muscle gradually increased with the increase in bowing time of subway phubbers when using a mobile phone.The experiment validates the effectiveness of the fatigue evaluation model.The model can alert passengers to fatigue,help passengers form good mobile phone usage habits,and provide a basis for the development of an intelligent wear system.
作者
贾淼
杨钟亮
陈育苗
JIA Miao;YANG Zhongliang;CHEN Yumiao(College of Mechanical Engineering,Donghua University,Shanghai 201620;School of Art Design and Media,East China University of Science and Technology,Shanghai 200237)
出处
《智能系统学报》
CSCD
北大核心
2020年第4期705-713,共9页
CAAI Transactions on Intelligent Systems
基金
国家自然科学基金项目(51305077)
中央高校基本科研专项基金项目(2232018D3-27)
浙江省健康智能厨房系统集成重点实验室开放基金项目(2014E10014)
2017东华大学研究生核心课程建设项目(201711)
上海设计学IV类高峰学科资助项目(DC17013)。
关键词
肌肉疲劳
表面肌电
低头族
时域指标
频域指标
幅频联合分析
前导实验
评价模型
muscle fatigue
surface electromyography
phubber
time domain index
frequency domain index
amplitude-frequency joint analysis
leading experiment
evaluation model
