Simple exercises that significantly increase cerebral blood flow and\n cerebral oxygenation

Le résumé fourni par la source

We tested the hypothesis that simple exercises may significantly increase\ncerebral blood flow (CBF) and/or cerebral oxygenation. Eighteen subjects\nranging in age from nineteen to thirty nine participated in a four-stage study\nduring which measurements of end tidal CO_2 (EtCO2 - by capnometer) and local\nbrain oxygenation (by near-infrared spectroscopy (NIRS) sensor) were taken. The\nfour stages were 1) baseline, 2) breathing exercises, 3) solving an arithmetic\nproblem, and 4) biofeedback. During the breathing exercises there was a\nsignificant increase in EtCO2 indicating a significant increase in global CBF.\nThe increase in global CBF was estimated on the basis of a theoretical model.\nDuring the arithmetic and biofeedback tasks there was a significant increase in\nthe local (Fp1) oxygenation, but it varied between the different participants.\nThe results may lead to new clinical applications of CBF and brain oxygenation\nmonitoring and behavioral control. We foresee future more detailed\ninvestigations in the control of CO2 in brain circulation in specific regions\nof the brain involved in cognition and memory.\n

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.