The effect of high and low exercise intensity periods on a simple memory recognition test

PURPOSE: The purpose of this study was to investigate the effect of variable intensities on a simple memory recognition task during exercise. METHODS: Twenty active participants took part in initial testing, a familiarization trial and then four 60 min cycling interventions in a randomized order. In...

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Autores principales: Rattray, Ben, Smee, Disa J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Shanghai University of Sport 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6188603/
https://www.ncbi.nlm.nih.gov/pubmed/30356500
http://dx.doi.org/10.1016/j.jshs.2015.01.005
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author Rattray, Ben
Smee, Disa J.
author_facet Rattray, Ben
Smee, Disa J.
author_sort Rattray, Ben
collection PubMed
description PURPOSE: The purpose of this study was to investigate the effect of variable intensities on a simple memory recognition task during exercise. METHODS: Twenty active participants took part in initial testing, a familiarization trial and then four 60 min cycling interventions in a randomized order. Interventions consisted of no exercise (control), constant exercise at 90% ventilatory threshold (constant) and 2 trials that initially mimicked the constant trial, but then included periods of high (∼90% [Formula: see text]) and low intensities (∼50% [Formula: see text]). Cardiorespiratory measures and capillary blood samples were taken throughout. A short tablet-based cognitive task was completed prior to and during (50 and 55 min into exercise) each intervention. RESULTS: The exercise conditions facilitated response time (p = 0.009), although the extent of this effect was not as strong in the variable exercise conditions (p = 0.011–0.089). High intensity exercise periods resulted in some cognitive regression back towards control trial performance. Elevations in cardiorespiratory measures and periods of hypocapnia could not explain changes in cognitive performance. CONCLUSION: Changes in cognitive performance with variations in exercise intensity are likely to have implications for sport and occupational settings. The timing of cognitive tests to exercise intensity changes as well as use of short cognitive assessments will be important for future work.
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spelling pubmed-61886032018-10-23 The effect of high and low exercise intensity periods on a simple memory recognition test Rattray, Ben Smee, Disa J. J Sport Health Sci Regular paper PURPOSE: The purpose of this study was to investigate the effect of variable intensities on a simple memory recognition task during exercise. METHODS: Twenty active participants took part in initial testing, a familiarization trial and then four 60 min cycling interventions in a randomized order. Interventions consisted of no exercise (control), constant exercise at 90% ventilatory threshold (constant) and 2 trials that initially mimicked the constant trial, but then included periods of high (∼90% [Formula: see text]) and low intensities (∼50% [Formula: see text]). Cardiorespiratory measures and capillary blood samples were taken throughout. A short tablet-based cognitive task was completed prior to and during (50 and 55 min into exercise) each intervention. RESULTS: The exercise conditions facilitated response time (p = 0.009), although the extent of this effect was not as strong in the variable exercise conditions (p = 0.011–0.089). High intensity exercise periods resulted in some cognitive regression back towards control trial performance. Elevations in cardiorespiratory measures and periods of hypocapnia could not explain changes in cognitive performance. CONCLUSION: Changes in cognitive performance with variations in exercise intensity are likely to have implications for sport and occupational settings. The timing of cognitive tests to exercise intensity changes as well as use of short cognitive assessments will be important for future work. Shanghai University of Sport 2016-09 2015-04-30 /pmc/articles/PMC6188603/ /pubmed/30356500 http://dx.doi.org/10.1016/j.jshs.2015.01.005 Text en © 2016 Production and hosting by Elsevier B.V. on behalf of Shanghai University of Sport. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Regular paper
Rattray, Ben
Smee, Disa J.
The effect of high and low exercise intensity periods on a simple memory recognition test
title The effect of high and low exercise intensity periods on a simple memory recognition test
title_full The effect of high and low exercise intensity periods on a simple memory recognition test
title_fullStr The effect of high and low exercise intensity periods on a simple memory recognition test
title_full_unstemmed The effect of high and low exercise intensity periods on a simple memory recognition test
title_short The effect of high and low exercise intensity periods on a simple memory recognition test
title_sort effect of high and low exercise intensity periods on a simple memory recognition test
topic Regular paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6188603/
https://www.ncbi.nlm.nih.gov/pubmed/30356500
http://dx.doi.org/10.1016/j.jshs.2015.01.005
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