递增跑过程中股四头肌和腘绳肌的肌肉激活情况。
Muscle activation of the quadriceps and hamstrings during incremental running.
作者信息
Camic Clayton L, Kovacs Attila J, Enquist Evan A, McLain Trisha A, Hill Ethan C
机构信息
Human Performance Laboratory, Exercise and Sport Science, University of Wisconsin-La Crosse, La Crosse, Wisconsin, 54601, USA.
Department of Kinesiology, University of Alabama, Tuscaloosa, Alabama, USA.
出版信息
Muscle Nerve. 2015 Dec;52(6):1023-9. doi: 10.1002/mus.24901. Epub 2015 Sep 23.
INTRODUCTION
The aim of this study was to determine the patterns of responses for the electromyographic (EMG) amplitude vs. oxygen uptake ( V̇O2 ) relationships from muscles of the quadriceps femoris and hamstrings during incremental treadmill running.
METHODS
Twelve men volunteered to perform an incremental test to exhaustion while EMG signals were recorded from the vastus lateralis, vastus medialis, biceps femoris, and semitendinosus muscles. Polynomial regression analyses were used to determine the best model fit for the EMG amplitude vs. V̇O2 relationships.
RESULTS
There were significant (P < 0.05) increases in EMG amplitude across V̇O2 for the vastus lateralis (quadratic, R = 0.995), vastus medialis (quadratic, R = 0.997), biceps femoris (cubic, R = 0.999), and semitendinosus (linear, R = 0.992) muscles as well as the hamstrings-to-quadriceps ratio (cubic, R = 0.999).
CONCLUSION
These findings indicate that the patterns of responses for muscle activation vs. exercise intensity appear to be unique among muscles of the thigh.
引言
本研究的目的是确定在递增式跑步机跑步过程中，股四头肌和腘绳肌的肌电图（EMG）幅度与摄氧量（V̇O2）之间关系的反应模式。
方法
12名男性志愿者进行递增式力竭测试，同时记录股外侧肌、股内侧肌、股二头肌和半腱肌的EMG信号。采用多项式回归分析来确定最适合EMG幅度与V̇O2关系的模型。
结果
股外侧肌（二次函数，R = 0.995）、股内侧肌（二次函数，R = 0.997）、股二头肌（三次函数，R = 0.999）、半腱肌（线性函数，R = 0.992）以及腘绳肌与股四头肌比值（三次函数，R = 0.999）的EMG幅度随V̇O2均有显著（P < 0.05）增加。
结论
这些发现表明，大腿肌肉中肌肉激活与运动强度的反应模式似乎是独特的。
Zotero 插件