Kuboyama Naomi, Shibuya Kenichi
Faculty of Business Administration, Osaka University of Commerce, 4-1-10 Mikuriyasakae-machi, 577-8505, Higashi-Osaka, Japan.
Department of Health and Nutrition, Niigata University of Health and Welfare, 1398 Shimami-chi, 950-3198, Niigata, Kita-Ku, Japan.
J Physiol Anthropol. 2015 Nov 4;34:37. doi: 10.1186/s40101-015-0077-z.
The effect of fatiguing exercise on the ipsi- and contralateral frontal cortex has not been fully clarified. The purpose of this study was to investigate by near-infrared spectroscopy (NIRS) the frontal cortex oxygenation response to a prolonged fatiguing repetitive handgrip exercise performed at maximal voluntary contraction. It was found a significant oxyhemoglobin concentration ([HbO2]) increase (p < 0.05), accompanied by a smaller and delayed deoxyhemoglobin concentration ([Hb]) decrease (p < 0.05), in both hemispheres. Then, it was indicated higher delayed oxygenation in ipsilateral oxygenation compared to contralateral oxygenation. These results provide further evidence that the complemental interaction between the ipsilateral and contralateral cortex during the fatiguing maximal exercise.
疲劳运动对同侧和对侧额叶皮质的影响尚未完全阐明。本研究的目的是通过近红外光谱（NIRS）研究在最大自主收缩下进行的长时间疲劳重复性握力运动时额叶皮质的氧合反应。结果发现，两个半球的氧合血红蛋白浓度（[HbO2]）均显著增加（p < 0.05），同时脱氧血红蛋白浓度（[Hb]）的降低幅度较小且延迟（p < 0.05）。然后，结果表明同侧氧合的延迟氧合高于对侧氧合。这些结果进一步证明了在疲劳性最大运动期间同侧和对侧皮质之间的互补相互作用。
