Study on the Feasibility of EMGFT Assessed Anaerobic Threshold

This paper measured the EMGFT of youth soccer players with the methods of determination EMGFT of Matsumoto.Aim to testify the stability of determination of EMGFT with the method non-invasive.To discuss the relationship between EMGFT and LAT,VAT,HRT in increments load,then analyze and evaluate the feasibility of the method of measure AT.Methods:Incremental load test to determine LAT,VAT,HRT;EMG threshold determined experimentally EMGFT.Results:EMGFT were 151.08±10.52W,153.56±12.93W,respectively in the stability of EMGFT trial.There was a highly significant correlation(r=0.95,P<0.001).A paired t-test indicated that there was no statistically significant difference in the two trial(P>0.05).EMGFT,LAT,VAT and HRT during trial were 2481±463 ml/min,2507±501 ml/min,2580±474 ml/min and 2610±517 ml/min as VO2 for parameter,respectively.There were a highly significant correlation between VO2 at EMGFT and VO2 at LAT(r=0.97,P<0.001),VAT(r=0.91,P<0.001),HRT(r=0.76,P<0.05).EMGFT,LAT,VAT and HRT during trial were 157±20W,158±20W,162±21W and 162±26W as watt for parameter,respectively.There was a highly significant correlation between watt at EMGFT and watt at LAT(r=0.96,P<0.001),VAT(r=0.93,P<0.001),HRT(r=0.71,P<0.05).Conclusion:By the use of the method of EMGFT which by Matsumoto invented,it indicates that the method may determinate EMGFT and very efficiency and stabilization.These data suggest that there were a highly significant correlation between VO2 or watt at EMGFT and VO2 or watt at LAT、VAT、HRT,and its order is EMGFT →LAT→VAT.These data indicate the method of determination EMGFT use to the determination of AT.It is a non-invasive simple and easy.The method of HRT was instability,it indicates that HRT not suitable to measure AT.