Intensity-Dependent Effects of Acute Exercise on Executive Function

Numerous studies suggest beneficial effects of aerobic exercise at moderate intensity on cognition, while the effects of high-intensity exercise are less clear. This study investigated the acute effects of exercise at moderate and high intensities on executive functions in healthy adults, including...

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Main Authors: Aylin Mehren, Cecilia Diaz Luque, Mirko Brandes, Alexandra P. Lam, Christiane M. Thiel, Alexandra Philipsen, Jale Özyurt
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Neural Plasticity
Online Access:http://dx.doi.org/10.1155/2019/8608317
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author Aylin Mehren
Cecilia Diaz Luque
Mirko Brandes
Alexandra P. Lam
Christiane M. Thiel
Alexandra Philipsen
Jale Özyurt
author_facet Aylin Mehren
Cecilia Diaz Luque
Mirko Brandes
Alexandra P. Lam
Christiane M. Thiel
Alexandra Philipsen
Jale Özyurt
author_sort Aylin Mehren
collection DOAJ
description Numerous studies suggest beneficial effects of aerobic exercise at moderate intensity on cognition, while the effects of high-intensity exercise are less clear. This study investigated the acute effects of exercise at moderate and high intensities on executive functions in healthy adults, including functional MRI to examine the underlying neural mechanisms. Furthermore, the association between exercise effects and cardiorespiratory fitness was examined. 64 participants performed in two executive function tasks (flanker and Go/No-go tasks), while functional MR images were collected, following two conditions: in the exercise condition, they cycled on an ergometer at either moderate or high intensity (each n=32); in the control condition, they watched a movie. Differences in behavioral performance and brain activation between the two conditions were compared between groups. Further, correlations between cardiorespiratory fitness and exercise effects on neural and behavioral correlates of executive performance were calculated. Moderate exercise compared to high-intensity exercise was associated with a tendency towards improved behavioral performance (sensitivity index d′) in the Go/No-go task and increased brain activation during hit trials in areas related to executive function, attention, and motor processes (insula, superior frontal gyrus, precentral gyrus, and supplementary motor area). Exercise at high intensity was associated with decreased brain activation in those areas and no changes in behavioral performance. Exercise had no effect on brain activation in the flanker task, but an explorative analysis revealed that reaction times improved after high-intensity exercise. Higher cardiorespiratory fitness was correlated with increased brain activation after moderate exercise and decreased brain activation after high-intensity exercise. These data show that exercise at moderate vs. high intensity has different effects on executive task performance and related brain activation changes as measured by fMRI and that cardiorespiratory fitness might be a moderating factor of acute exercise effects. Thus, our results may contribute to further clarify the neurophysiological mechanisms underlying the beneficial effects of exercise on cognition.
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spelling doaj-art-85a7ddb213d14b5fa32074af25934a232025-02-03T06:01:34ZengWileyNeural Plasticity2090-59041687-54432019-01-01201910.1155/2019/86083178608317Intensity-Dependent Effects of Acute Exercise on Executive FunctionAylin Mehren0Cecilia Diaz Luque1Mirko Brandes2Alexandra P. Lam3Christiane M. Thiel4Alexandra Philipsen5Jale Özyurt6Biological Psychology Lab, Department of Psychology, School of Medicine and Health Sciences, Carl von Ossietzky Universität Oldenburg, Oldenburg, GermanyBiological Psychology Lab, Department of Psychology, School of Medicine and Health Sciences, Carl von Ossietzky Universität Oldenburg, Oldenburg, GermanyLeibniz Institute for Prevention Research and Epidemiology-BIPS GmbH, Department of Prevention and Evaluation, Unit Applied Health Intervention Research, Bremen, GermanyDepartment of Psychiatry and Psychotherapy, University of Bonn, Bonn, GermanyBiological Psychology Lab, Department of Psychology, School of Medicine and Health Sciences, Carl von Ossietzky Universität Oldenburg, Oldenburg, GermanyDepartment of Psychiatry and Psychotherapy, University of Bonn, Bonn, GermanyBiological Psychology Lab, Department of Psychology, School of Medicine and Health Sciences, Carl von Ossietzky Universität Oldenburg, Oldenburg, GermanyNumerous studies suggest beneficial effects of aerobic exercise at moderate intensity on cognition, while the effects of high-intensity exercise are less clear. This study investigated the acute effects of exercise at moderate and high intensities on executive functions in healthy adults, including functional MRI to examine the underlying neural mechanisms. Furthermore, the association between exercise effects and cardiorespiratory fitness was examined. 64 participants performed in two executive function tasks (flanker and Go/No-go tasks), while functional MR images were collected, following two conditions: in the exercise condition, they cycled on an ergometer at either moderate or high intensity (each n=32); in the control condition, they watched a movie. Differences in behavioral performance and brain activation between the two conditions were compared between groups. Further, correlations between cardiorespiratory fitness and exercise effects on neural and behavioral correlates of executive performance were calculated. Moderate exercise compared to high-intensity exercise was associated with a tendency towards improved behavioral performance (sensitivity index d′) in the Go/No-go task and increased brain activation during hit trials in areas related to executive function, attention, and motor processes (insula, superior frontal gyrus, precentral gyrus, and supplementary motor area). Exercise at high intensity was associated with decreased brain activation in those areas and no changes in behavioral performance. Exercise had no effect on brain activation in the flanker task, but an explorative analysis revealed that reaction times improved after high-intensity exercise. Higher cardiorespiratory fitness was correlated with increased brain activation after moderate exercise and decreased brain activation after high-intensity exercise. These data show that exercise at moderate vs. high intensity has different effects on executive task performance and related brain activation changes as measured by fMRI and that cardiorespiratory fitness might be a moderating factor of acute exercise effects. Thus, our results may contribute to further clarify the neurophysiological mechanisms underlying the beneficial effects of exercise on cognition.http://dx.doi.org/10.1155/2019/8608317
spellingShingle Aylin Mehren
Cecilia Diaz Luque
Mirko Brandes
Alexandra P. Lam
Christiane M. Thiel
Alexandra Philipsen
Jale Özyurt
Intensity-Dependent Effects of Acute Exercise on Executive Function
Neural Plasticity
title Intensity-Dependent Effects of Acute Exercise on Executive Function
title_full Intensity-Dependent Effects of Acute Exercise on Executive Function
title_fullStr Intensity-Dependent Effects of Acute Exercise on Executive Function
title_full_unstemmed Intensity-Dependent Effects of Acute Exercise on Executive Function
title_short Intensity-Dependent Effects of Acute Exercise on Executive Function
title_sort intensity dependent effects of acute exercise on executive function
url http://dx.doi.org/10.1155/2019/8608317
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