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  • Effects of acute exercise, dehydration and rehydration on cognitive function in well-trained athletes

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    IrwinPUB2222.pdf (539.2Kb)
    Author(s)
    Irwin, Christopher
    Campagnolo, Nadia
    Iudakhina, Elizaveta
    Cox, Gregory R
    Desbrow, Ben
    Griffith University Author(s)
    Irwin, Chris G.
    Campagnolo, Nadia
    Desbrow, Ben
    Iudakhina, Elizaveta
    Year published
    2018
    Metadata
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    Abstract
    This study investigated the effects of aerobic exercise, fluid loss and rehydration on cognitive performance in well-trained athletes. Ten endurance-trained males (25 ± 5 years; 175 ± 5 cm; 70.35 ± 5.46 kg; VO2max, 62.95 ± 7.20 ml · kg.min−1) lost ~2.5 ± 0.6% body mass via continuous cycling exercise at ~65% peak sustainable power output (60 min duration) before consuming different beverages (Water = W1 and W2, Sustagen Sport = SS, Powerade = PD) and food ad libitum on four separate occasions. Cognitive function using a four-choice reaction time task (CRT), body mass, fluid consumption volumes, urine samples and subjective ...
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    This study investigated the effects of aerobic exercise, fluid loss and rehydration on cognitive performance in well-trained athletes. Ten endurance-trained males (25 ± 5 years; 175 ± 5 cm; 70.35 ± 5.46 kg; VO2max, 62.95 ± 7.20 ml · kg.min−1) lost ~2.5 ± 0.6% body mass via continuous cycling exercise at ~65% peak sustainable power output (60 min duration) before consuming different beverages (Water = W1 and W2, Sustagen Sport = SS, Powerade = PD) and food ad libitum on four separate occasions. Cognitive function using a four-choice reaction time task (CRT), body mass, fluid consumption volumes, urine samples and subjective ratings (alertness, concentration, energy) were obtained before and after exercise, and hourly during recovery (for 4 h). CRT latency was significantly reduced immediately after exercise compared to pre-exercise measures for all trials (W1 = −16 ± 18 ms, W2 = −22 ± 21 ms, PD = −22 ± 22 ms, SS = −19 ± 26 ms). However, this effect was short-lived with subsequent measures not different from pre-exercise values. No difference in CRT accuracy was observed at any time across all trials. Subjective ratings were not different at any time across all trials. Aerobic exercise, hypohydration or an interaction between these two may provide a small cognitive performance benefit. However, these effects are temporary and confined to the immediate post-exercise period.
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    Journal Title
    Journal of Sports Sciences
    DOI
    https://doi.org/10.1080/02640414.2017.1298828
    Copyright Statement
    © 2017 Taylor & Francis (Routledge). This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Sports Sciences on 02 Mar 2017, available online: http://www.tandfonline.com/10.1080/02640414.2017.1298828
    Note
    This publication has been entered into Griffith Research Online as an Advanced Online Version.
    Subject
    Human Movement and Sports Science not elsewhere classified
    Human Movement and Sports Sciences
    Curriculum and Pedagogy
    Publication URI
    http://hdl.handle.net/10072/344991
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    • Journal articles

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