The influence of an acute bout of aerobic exercise on cortical contributions to motor preparation and execution
Identifieur interne : 000B40 ( Pmc/Curation ); précédent : 000B39; suivant : 000B41The influence of an acute bout of aerobic exercise on cortical contributions to motor preparation and execution
Auteurs : Jonathan S. Thacker ; Laura E. Middleton ; William E. Mcilroy ; W. Richard StainesSource :
- Physiological Reports [ 2051-817X ] ; 2014.
Abstract
Increasing evidence supports the use of physical activity for modifying brain activity and overall neurological health. Specifically, aerobic exercise appears to have a positive effect on cognitive function, which some have suggested to be a result of increasing levels of arousal. However, the role of aerobic exercise on movement‐related cortical activity is less clear. We tested the hypothesis that (1) an acute bout of exercise modulates excitability within motor areas and (2) transient effects would be sustained as long as sympathetic drive remained elevated (indicated by heart rate). In experiment 1, participants performed unimanual self‐paced wrist extension movements before and after a 20‐min, moderate intensity aerobic exercise intervention on a recumbent cycle ergometer. After the cessation of exercise, Bereitschaftspotentials (BP), representative cortical markers for motor preparation, were recorded immediately postexercise (Post) and following a return to baseline heart rate (Post[Rest]). Electroencephalography (EEG) was used to measure the BP time‐locked to onset of muscle activity and separated into three main components: early, late and reafferent potentials. In experiment 2, two additional time points postexercise were added to the original protocol following the Post[Rest] condition. Early BP but not late BP was influenced by aerobic exercise, evidenced by an earlier onset, indicative of a regionally selective effect across BP generators. Moreover, this effect was sustained for up to an hour following exercise cessation and this effect was following a return to baseline heart rate. These data demonstrate that acute aerobic exercise may alter and possibly enhance the cortical substrates required for the preparation of movement.
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DOI: 10.14814/phy2.12178
PubMed: 25355852
PubMed Central: 4254103
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Richard Staines</name><affiliation><nlm:aff>NONE</nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">25355852</idno><idno type="pmc">4254103</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4254103</idno><idno type="RBID">PMC:4254103</idno><idno type="doi">10.14814/phy2.12178</idno><date when="2014">2014</date><idno type="wicri:Area/Pmc/Corpus">000B40</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000B40</idno><idno type="wicri:Area/Pmc/Curation">000B40</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">000B40</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">The influence of an acute bout of aerobic exercise on cortical contributions to motor preparation and execution</title><author><name sortKey="Thacker, Jonathan S" sort="Thacker, Jonathan S" uniqKey="Thacker J" first="Jonathan S." last="Thacker">Jonathan S. Thacker</name><affiliation><nlm:aff>NONE</nlm:aff></affiliation></author><author><name sortKey="Middleton, Laura E" sort="Middleton, Laura E" uniqKey="Middleton L" first="Laura E." last="Middleton">Laura E. Middleton</name><affiliation><nlm:aff>NONE</nlm:aff></affiliation></author><author><name sortKey="Mcilroy, William E" sort="Mcilroy, William E" uniqKey="Mcilroy W" first="William E." last="Mcilroy">William E. Mcilroy</name><affiliation><nlm:aff>NONE</nlm:aff></affiliation></author><author><name sortKey="Staines, W Richard" sort="Staines, W Richard" uniqKey="Staines W" first="W. Richard" last="Staines">W. Richard Staines</name><affiliation><nlm:aff>NONE</nlm:aff></affiliation></author></analytic><series><title level="j">Physiological Reports</title><idno type="eISSN">2051-817X</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><title>Abstract</title><p>Increasing evidence supports the use of physical activity for modifying brain activity and overall neurological health. Specifically, aerobic exercise appears to have a positive effect on cognitive function, which some have suggested to be a result of increasing levels of arousal. However, the role of aerobic exercise on movement‐related cortical activity is less clear. We tested the hypothesis that (1) an acute bout of exercise modulates excitability within motor areas and (2) transient effects would be sustained as long as sympathetic drive remained elevated (indicated by heart rate). In experiment 1, participants performed unimanual self‐paced wrist extension movements before and after a 20‐min, moderate intensity aerobic exercise intervention on a recumbent cycle ergometer. After the cessation of exercise, Bereitschaftspotentials (BP), representative cortical markers for motor preparation, were recorded immediately postexercise (Post) and following a return to baseline heart rate (Post[Rest]). Electroencephalography (EEG) was used to measure the BP time‐locked to onset of muscle activity and separated into three main components: early, late and reafferent potentials. In experiment 2, two additional time points postexercise were added to the original protocol following the Post[Rest] condition. Early BP but not late BP was influenced by aerobic exercise, evidenced by an earlier onset, indicative of a regionally selective effect across BP generators. Moreover, this effect was sustained for up to an hour following exercise cessation and this effect was following a return to baseline heart rate. These data demonstrate that acute aerobic exercise may alter and possibly enhance the cortical substrates required for the preparation of movement.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Audiffren, M" uniqKey="Audiffren M">M. Audiffren</name></author><author><name sortKey="Tomporowski, P D" uniqKey="Tomporowski P">P. D. Tomporowski</name></author><author><name sortKey="Zagrodnik, J" uniqKey="Zagrodnik J">J. Zagrodnik</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Barba, C" uniqKey="Barba C">C. Barba</name></author><author><name sortKey="Valeriani, M" uniqKey="Valeriani M">M. Valeriani</name></author><author><name sortKey="Colicchio, G" uniqKey="Colicchio G">G. 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<front><journal-meta><journal-id journal-id-type="nlm-ta">Physiol Rep</journal-id><journal-id journal-id-type="iso-abbrev">Physiol Rep</journal-id><journal-id journal-id-type="hwp">physreports</journal-id><journal-id journal-id-type="publisher-id">phy2</journal-id><journal-title-group><journal-title>Physiological Reports</journal-title></journal-title-group><issn pub-type="epub">2051-817X</issn><publisher><publisher-name>Wiley Periodicals, Inc.</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">25355852</article-id><article-id pub-id-type="pmc">4254103</article-id><article-id pub-id-type="publisher-id">phy212178</article-id><article-id pub-id-type="doi">10.14814/phy2.12178</article-id><article-categories><subj-group subj-group-type="heading"><subject>Original Research</subject></subj-group></article-categories><title-group><article-title>The influence of an acute bout of aerobic exercise on cortical contributions to motor preparation and execution</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Thacker</surname><given-names>Jonathan S.</given-names></name><xref ref-type="aff" rid="au1"></xref></contrib><contrib contrib-type="author"><name><surname>Middleton</surname><given-names>Laura E.</given-names></name><xref ref-type="aff" rid="au1"></xref></contrib><contrib contrib-type="author"><name><surname>McIlroy</surname><given-names>William E.</given-names></name><xref ref-type="aff" rid="au1"></xref></contrib><contrib contrib-type="author"><name><surname>Staines</surname><given-names>W. Richard</given-names></name><xref ref-type="aff" rid="au1"></xref></contrib><aff id="au1"><label>1</label><institution>Department of Kinesiology, University of Waterloo,</institution><addr-line>Waterloo, Ontario, Canada</addr-line></aff></contrib-group><author-notes><corresp id="cor1"><bold>Correspondence</bold>W. Richard Staines, Department of Kinesiology, University of Waterloo, 200 University Ave W, Waterloo, ON, Canada N2L 3G1. Tel: (519)‐888‐4567 ext.37756 Fax: (519)‐885‐0470 E‐mail: <email>rstaines@uwaterloo.ca</email></corresp></author-notes><pub-date pub-type="collection"><month>10</month><year>2014</year></pub-date><pub-date pub-type="epub"><day>29</day><month>10</month><year>2014</year></pub-date><volume>2</volume><issue>10</issue><elocation-id>e12178</elocation-id><history><date date-type="received"><day>22</day><month>9</month><year>2014</year></date><date date-type="accepted"><day>24</day><month>9</month><year>2014</year></date></history><permissions><copyright-statement>© 2014 The Authors. <italic>Physiological Reports</italic> published by Wiley Periodicals, Inc. on behalf of the American Physiological Society and The Physiological Society.
</copyright-statement><copyright-year>2014</copyright-year><license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0/"><license-p>This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.</license-p></license></permissions><abstract><title>Abstract</title><p>Increasing evidence supports the use of physical activity for modifying brain activity and overall neurological health. Specifically, aerobic exercise appears to have a positive effect on cognitive function, which some have suggested to be a result of increasing levels of arousal. However, the role of aerobic exercise on movement‐related cortical activity is less clear. We tested the hypothesis that (1) an acute bout of exercise modulates excitability within motor areas and (2) transient effects would be sustained as long as sympathetic drive remained elevated (indicated by heart rate). In experiment 1, participants performed unimanual self‐paced wrist extension movements before and after a 20‐min, moderate intensity aerobic exercise intervention on a recumbent cycle ergometer. After the cessation of exercise, Bereitschaftspotentials (BP), representative cortical markers for motor preparation, were recorded immediately postexercise (Post) and following a return to baseline heart rate (Post[Rest]). Electroencephalography (EEG) was used to measure the BP time‐locked to onset of muscle activity and separated into three main components: early, late and reafferent potentials. In experiment 2, two additional time points postexercise were added to the original protocol following the Post[Rest] condition. Early BP but not late BP was influenced by aerobic exercise, evidenced by an earlier onset, indicative of a regionally selective effect across BP generators. Moreover, this effect was sustained for up to an hour following exercise cessation and this effect was following a return to baseline heart rate. These data demonstrate that acute aerobic exercise may alter and possibly enhance the cortical substrates required for the preparation of movement.</p></abstract><abstract abstract-type="precis"><p>e12178</p><p>Increasing evidence supports the use of physical activity for modifying brain activity and overall neurological health. Using electroencephalography (EEG) time‐locked to onset of muscle activity, we showed that cortical activity associated with movement preparation was influenced following aerobic exercise, evidenced by an earlier onset, and greater amplitude. These data demonstrate that acute aerobic exercise may alter and possibly enhance the cortical substrates required for the preparation of movement.</p></abstract><kwd-group><kwd>Aerobic exercise</kwd><kwd>Bereitschaftspotential</kwd><kwd>electroencephalography</kwd><kwd>motor evoked potentials</kwd><kwd>N30</kwd><kwd>readiness potential</kwd><kwd>supplementary motor area</kwd></kwd-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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