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| EMGFT评定无氧阈的可行性研究 | |
| 引用本文： | 黄志强,刘刚,任建生.EMGFT评定无氧阈的可行性研究[J].体育科学,2012,32(8):91-97. |
| 作者姓名： | 黄志强 刘刚 任建生 |
| 作者单位： | 1. 湖北第二师范学院体育系,湖北武汉,430205 2. 湖南科技大学体育学院,湖南湘潭,411201 3. 武汉体育学院运动生理生化教研室,湖北武汉,430079 |
| 摘 要： | 运用Matsumoto测定EMGFT的方法对青少年足球运动员EMGFT进行测试,目的在于验证肌电阈稳定性;检验EMGFT与LAT、VAT、HRT的相关性;探讨EMGFT无损伤测定无氧阈方法的可行性。方法:递增负荷实验确定LAT、VAT、HRT;肌电阈实验确定EMGFT。结果:EMGFT稳定性实验,两次均值分别为151.08±10.52 W、153.56±12.93 W,r=0.95(P<0.001),组间无显著性差异(P>0.05);以VO2为参数,EMGFT、LAT、VAT、HRT均值分别为2481±463ml/min、2507±501ml/min、2580±474ml/min、2610±517ml/min,EMGFT分别与LAT、VAT、HRT相关性检验r=0.97(P<0.001)、r=0.91(P<0.001)、r=0.76(P<0.05),配对样本t检验P>0.05、P>0.05、P<0.05;以功率为参数,EMGFT、LAT、VAT、HRT均值分别为157±20 W、158±20 W、162±21 W、162±26 W,相关性检验r=0.96(P<0.001)、r=0.93(P<0.001)、r=0.71(P<0.05),配对样本t检验P>0.05、P>0.05、P<0.05。结论:应用Matsumoto肌电无氧阈方法能很好地确定EMGFT,稳定性较好;EMGFT与LAT、VAT呈高度相关,出现时间顺序依次为EMGFT→LAT→VAT,EMGFT略早于LAT和VAT,呈一定的规律性,表明EMGFT可以用于检测无氧阈,具有无损伤、简单、易测等优点;HRT检测无氧阈不稳定,说明HRT不宜作为无氧阈的评定指标。 |
| 关 键 词： | 肌电阈 乳酸阈 通气阈 心率阈 无氧阈 积分肌电 |
Study on the Feasibility of EMGFT Assessed Anaerobic Threshold |
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| HUANG Zhi-qiang , LIU Gang , REN Jian-sheng.Study on the Feasibility of EMGFT Assessed Anaerobic Threshold[J].China Sport Science,2012,32(8):91-97. | |
| Authors: | HUANG Zhi-qiang LIU Gang REN Jian-sheng |
| Institution: | 1.Department of Physical Education,Hubei University of Education,Wuhan 430205,China;2.Hunan University of Technology,Xiangtan 411201,China;3.Wuhan Sports University,Wuhan 430079,China |
| Abstract: | 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. |
| Keywords: | EMGFT LAT VAT HRT AT iEMG |
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