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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Main Authors: Ben Rattray, Disa J. Smee
Format: Article
Language:English
Published: Elsevier 2016-09-01
Series:Journal of Sport and Health Science
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S209525461500040X
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spelling doaj-6565b8892115450f99fd91eae716f2332020-11-24T22:36:31ZengElsevierJournal of Sport and Health Science2095-25462016-09-015334234810.1016/j.jshs.2015.01.005The effect of high and low exercise intensity periods on a simple memory recognition testBen Rattray0Disa J. Smee1Discipline of Sport and Exercise Science, Faculty of Health, University of Canberra, Canberra, ACT 2601, AustraliaDiscipline of Sport and Exercise Science, Faculty of Health, University of Canberra, Canberra, ACT 2601, AustraliaPurpose: 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%VO2peak) and low intensities (∼50%VO2peak). 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.http://www.sciencedirect.com/science/article/pii/S209525461500040XAcuteCognitiveCyclingDecision-makingPhysical activity
collection DOAJ
language English
format Article
sources DOAJ
author Ben Rattray
Disa J. Smee
spellingShingle Ben Rattray
Disa J. Smee
The effect of high and low exercise intensity periods on a simple memory recognition test
Journal of Sport and Health Science
Acute
Cognitive
Cycling
Decision-making
Physical activity
author_facet Ben Rattray
Disa J. Smee
author_sort Ben Rattray
title 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_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_sort effect of high and low exercise intensity periods on a simple memory recognition test
publisher Elsevier
series Journal of Sport and Health Science
issn 2095-2546
publishDate 2016-09-01
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%VO2peak) and low intensities (∼50%VO2peak). 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.
topic Acute
Cognitive
Cycling
Decision-making
Physical activity
url http://www.sciencedirect.com/science/article/pii/S209525461500040X
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