Effects of intramuscular energy change on the oxygen uptake kinetics during exercise

运动过程中肌内能量变化对摄氧动力学的影响

• 批准号: 23800076
• 负责人: ARIMITSU Takuma
• 金额: $ 2万
• 依托单位: National Agency for the Advancement of Sports and Health
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Research Activity Start-up
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-23800076/
• 关键词: 酸素摂取量; ^<31>P-MRS; 筋エネルギー代謝; 表面筋電図; 筋力; 過剰酸素摂取量; 磁気共鳴分光法; 自由エネルギー; リン磁気共鳴分光法

The purpose of this study was to reveal the effect of alteration inmetabolism of active muscle energy on the oxygen uptake during exercise. As a result, the Gibbs free energy in active muscle during exercise decreased, at the same time, oxygenuptake and activity level of active muscle derived from the surface EMG revealed significant increase. Also, compare with controlled condition, prior sever exercise does not effects the intramuscular energy release, however, activity level of muscle activitysignificantly increased. Therefore, these results suggest that increase of oxygen uptake and muscle recruitment were induced by the metabolic effects of (decrease of) intramuscular energy in high intensity exercise.

这项研究的目的是揭示活性肌肉能量改变代谢对运动过程中氧气吸收的影响。结果，运动过程中活性肌肉中的吉布斯自由能减少了，同时，从表面EMG衍生的活性肌肉的氧气和活性水平显示出显着增加。同样，与受控条件相比，先前的严重运动不会影响肌内能量释放，但是，肌肉活动的活性水平显着增加。因此，这些结果表明，在高强度运动中（减少）肌肉内能的代谢作用引起了氧气吸收和肌肉募集的增加。