1.Analysis on local muscle fatigue in lifting work by surface electromyographyAnalysis on local muscle fatigue in lifting work by surface electromyography
China Occupational Medicine 2022;51(03):254-
Abstract: Objective
To investigate the effect of lifting operation on fatigue susceptibility of local muscles under different
Methods
liftingmass,frequencyandangle. Fifteenmalecollegestudentvolunteerswereselectedasthestudysubjectsusinga-
purerandomsamplingmethod.Eightkindsofliftingoperations(setasA Hoperationgroup)wereperformedunderthespecified
mass (5 and 10 kg), frequency (10 and15 times/min) and angle (45° and 90°), five minutes each. The percentage of maximum
voluntaryelectricalactivation(MVE%)andaveragepowerfrequency(MPF)oferectorspinaeandmultifidusmuscleatmaximumResultsvoluntarycontractionweremeasuredbysurfaceelectromyography.TherewasanassociationbetweentheleftandrightP
2.Analysis on local muscle fatigue in lifting work by surface electromyographyAnalysis on local muscle fatigue in lifting work by surface electromyography
China Occupational Medicine 2022;51(03):254-
Abstract: Objective
To investigate the effect of lifting operation on fatigue susceptibility of local muscles under different
Methods
liftingmass,frequencyandangle. Fifteenmalecollegestudentvolunteerswereselectedasthestudysubjectsusinga-
purerandomsamplingmethod.Eightkindsofliftingoperations(setasA Hoperationgroup)wereperformedunderthespecified
mass (5 and 10 kg), frequency (10 and15 times/min) and angle (45° and 90°), five minutes each. The percentage of maximum
voluntaryelectricalactivation(MVE%)andaveragepowerfrequency(MPF)oferectorspinaeandmultifidusmuscleatmaximumResultsvoluntarycontractionweremeasuredbysurfaceelectromyography.TherewasanassociationbetweentheleftandrightP
3.Analysis on local muscle fatigue in lifting work by surface electromyography
YUYing jie HUANGXin yu WANGYi jun JIANGGao feng WANGZhen yu WULei
China Occupational Medicine 2022;51(03):254-
Abstract: Objective
To investigate the effect of lifting operation on fatigue susceptibility of local muscles under different
Methods
liftingmass,frequencyandangle. Fifteenmalecollegestudentvolunteerswereselectedasthestudysubjectsusinga-
purerandomsamplingmethod.Eightkindsofliftingoperations(setasA Hoperationgroup)wereperformedunderthespecified
mass (5 and 10 kg), frequency (10 and15 times/min) and angle (45° and 90°), five minutes each. The percentage of maximum
voluntaryelectricalactivation(MVE%)andaveragepowerfrequency(MPF)oferectorspinaeandmultifidusmuscleatmaximumResultsvoluntarycontractionweremeasuredbysurfaceelectromyography.TherewasanassociationbetweentheleftandrightP
Result Analysis
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