Randomized controlled trial2022Open access

Cognitive Performance Before and Following Habituation to Exercise-Induced Hypohydration of 2 and 4% Body Mass in Physically Active Individuals

Deshayes TA, Daigle N, Jeker D, Lamontagne-Lacasse M, Perreault-Briere M, Claveau P, Simoneau IL, Chamoux E, Goulet EDB

Nutrients · 3 citations

How it was studied

Design
Randomized controlled trial (indexed by PubMed)
Studied in
People
Main outcome
Health markers and function

Who paid for it

Funding
Independent funding
Government
Fonds de Recherche du Québec - Santé
Government
Canadian Government (Innovation for Defence Excellence and Security (IDEaS))
Government
Canadian Government (Innovation for Defence Excellence and Security

Based on 3 listed funder(s) and full-text disclosure statement.

Publication

Published
2022-02-22 · Nutrients · vol. 14 · issue 5 · p. 935
Publisher
Multidisciplinary Digital Publishing Institute
Cited
6 citations · more than 61% of similar papers · 0.6× the field average
References
51 works
Access
Open access (journal) · CC-BY
Research areas
Thermoregulation and physiological responses · Flow Experience in Various Fields · Climate Change and Health Impacts
Keywords
Habituation, Crossover study, Effects of sleep deprivation on cognitive performance, Cognition, Psychology, Physical medicine and rehabilitation, Physical therapy, Medicine, Audiology, Placebo
MeSH
humans, dehydration, exercise, cross-over studies, cognition, heart rate, adult, habituation, psychophysiologic

9 authors

From CA

  • Thomas A. DeshayesUniversité de Sherbrooke
  • Nicolas DaigleUniversité de Sherbrooke
  • David JekerUniversité de Sherbrooke
  • Martin Lamontagne-LacasseUniversité de Sherbrooke
  • Maxime Perreault-BriereUniversité de Sherbrooke
  • Pascale ClaveauUniversité de Sherbrooke

Abstract

We investigated the effect of repeated exposures to hypohydration upon cognitive performance. In a randomized crossover design, ten physically active adults completed two 4-week training blocks, one where they maintained euhydration (EUH) and the other where they were water-restricted (DEH) during walking/running at 55% V.O2max, 40 °C. Three sessions per week were performed: (1) 1 h of exercise, (2) exercise until 2% or (3) 4% of body mass has been lost or replaced. Limited to the first and fourth training week, a 12 min walking/running time-trial was completed following the 2 and 4% exercise bouts. Trail making, the Wisconsin card sort, the Stop signal task, Simple visual reaction time and Corsi block-tapping tests were performed immediately following the time-trials. Body mass loss was maintained 0.05). From a practical perspective, the gains in cognitive performance following training to DEH were mostly unclear, but under certain circumstances, were greater than when EUH was maintained. Based on the battery of cognitive tests used in the current study, we conclude that whether physically active individuals are habituated or not to its effect, exercise-induced hypohydration of 2 and 4% has, in general, no or unclear impact on cognitive performance immediately following exercise. These results encourage further research in this area.

Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).

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