Integrative Physiology of Exercise Laboratory, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, 259 Mack Avenue, Detroit, Michigan 48201, USA.
Muscle Nerve. 2011 Sep;44(3):432-8. doi: 10.1002/mus.22089.
The purpose of this study was to understand the relationship between the mechanical activities of the three superficial quadriceps muscles and excess post-exercise oxygen consumption (EPOC) after incremental cycle ergometer exercise.
Twelve healthy male volunteers had mechanomyographic (MMG) and electromyographic (EMG) activity of the superficial quadriceps muscles recorded 30 minutes before incremental cycle ergometry and 60 minutes after the exercise work bout.
The results indicate significant time-constant values for EPOC and MMG amplitude for the three superficial quadriceps muscles during the 60-minute post-exercise recovery period. For EMG amplitude no decay patterns were found for the three muscles. In addition, there were no mean differences between the MMG values for the three muscles that were significantly different from EPOC.
These results suggest that EPOC after exercise could not be exclusively attributed to elevated activity of the working muscles.
本研究旨在理解递增式踏车运动后,三种表层股四头肌的机械活动与运动后过量耗氧量(EPOC)之间的关系。
12 名健康男性志愿者在递增式踏车运动前 30 分钟和运动后 60 分钟记录股四头肌表层的肌动描记法(MMG)和肌电图(EMG)活动。
结果表明,在 60 分钟的运动后恢复期内,EPOC 和三种表层股四头肌的 MMG 振幅的时间常数值显著。对于 EMG 振幅,三种肌肉均未发现衰减模式。此外,三种肌肉的 MMG 值与 EPOC 之间没有显著差异。
这些结果表明,运动后的 EPOC 不能仅归因于工作肌肉活动的增加。