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Ipsi- and contralateral frontal cortex oxygenation during handgrip task does not follow decrease on maximal force output.

Authors :
Naomi Kuboyama
Kenichi Shibuya
Source :
Journal of Physiological Anthropology; 11/4/2015, Vol. 34, p1-7, 7p
Publication Year :
2015

Abstract

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 ([HbO<subscript>2</subscript>]) 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. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
18806791
Volume :
34
Database :
Supplemental Index
Journal :
Journal of Physiological Anthropology
Publication Type :
Academic Journal
Accession number :
110820084
Full Text :
https://doi.org/10.1186/s40101-015-0077-z