A single bout of aerobic exercise does not alter inhibitory control preparatory set cerebral hemodynamics: Evidence from the antisaccade task.

Autor: Jeyarajan G; School of Kinesiology, University of Western Ontario, London, ON, Canada., Ayaz A; School of Kinesiology, University of Western Ontario, London, ON, Canada., Herold F; Faculty of Health Sciences Brandenburg, University of Potsdam, Potsdam, Germany., Zou L; Body-Brain-Mind Laboratory, School of Psychology, Shenzhen University, Shenzhen, China., Heath M; School of Kinesiology, University of Western Ontario, London, ON, Canada; Graduate Program in Neuroscience, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON, Canada; Canadian Centre for Activity and Aging, University of Western Ontario, London, ON, Canada. Electronic address: mheath2@uwo.ca.
Jazyk: angličtina
Zdroj: Brain and cognition [Brain Cogn] 2024 Aug; Vol. 179, pp. 106182. Date of Electronic Publication: 2024 Jun 01.
DOI: 10.1016/j.bandc.2024.106182
Abstrakt: A single bout of exercise improves executive function (EF) and is a benefit - in part -attributed to an exercise-mediated increase in cerebral blood flow enhancing neural efficiency. Limited work has used an event-related protocol to examine postexercise changes in preparatory phase cerebral hemodynamics for an EF task. This is salient given the neural efficiency hypothesis' assertion that improved EF is related to decreased brain activity. Here, event-related transcranial Doppler ultrasound was used to measure pro- (saccade to target) and antisaccades (saccade mirror-symmetrical target) preparatory phase middle cerebral artery velocity (MCAv) prior to and immediately after 15-min of aerobic exercise. Antisaccades produced longer reaction times (RT) and an increased preparatory phase MCAv than prosaccades - a result attributed to greater EF neural activity for antisaccades. Antisaccades selectively produced a postexercise RT reduction (ps < 0.01); however, antisaccade preparatory phase MCAv did not vary from pre- to postexercise (p=0.53) and did not correlate with the antisaccade RT benefit (p = 0.31). Accordingly, results provide no evidence that improved neural efficiency indexed via functional hyperemia is linked to a postexercise EF behavioural benefit. Instead, results support an evolving view that an EF benefit represents the additive interplay between interdependent exercise-mediated neurophysiological changes.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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