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    Effectiveness of hand cooling and a cooling jacket on post-exercise cooling rates in hyperthermic athletes

    Access Status
    Fulltext not available
    Authors
    Maroni, T.
    Dawson, B.
    Barnett, K.
    Guelfi, K.
    Brade, Carly
    Naylor, L.
    Brydges, C.
    Wallman, K.
    Date
    2018
    Type
    Journal Article
    
    Metadata
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    Citation
    Maroni, T. and Dawson, B. and Barnett, K. and Guelfi, K. and Brade, C. and Naylor, L. and Brydges, C. et al. 2018. Effectiveness of hand cooling and a cooling jacket on post-exercise cooling rates in hyperthermic athletes. European Journal of Sport Science: pp. 1-9.
    Source Title
    European Journal of Sport Science
    DOI
    10.1080/17461391.2018.1425484
    ISSN
    1746-1391
    School
    School of Physiotherapy and Exercise Science
    URI
    http://hdl.handle.net/20.500.11937/65547
    Collection
    • Curtin Research Publications
    Abstract

    © 2018 European College of Sport Science This study compared the effects of a hand cooling glove (~16°C water temperature; subatmospheric pressure of -40 mmHg) and a cooling jacket (CJ) on post-exercise cooling rates (gastrointestinal core temperature, Tc; skin temperature, Tsk) and cognitive performance (the Stroop Colour–Word test). Twelve male athletes performed four trials (within subjects, counterbalanced design) involving cycling at a workload equivalent to 75% ?O 2 max in heat (35.7?±?0.2°C, 49.2?±?2.6% RH) until a Tc of 39°C or exhaustion occurred. A 30-min cooling period (in 22.3?±?0.3°C, 42.1?±?3.6% RH) followed, where participants adopted either one-hand cooling (1H), two-hand cooling (2H), wore a CJ or no cooling (NC). No significant differences were seen in Tc and Tsk cooling rates between trials; however, moderate effect sizes (d?=?0.50–0.76) suggested Tc cooling rates to be faster for 1H, 2H and CJ compared to NC after 5 min; 1H and CJ compared to NC after 10 min and for CJ to be faster than 2H at 25–30 min. Reaction times on the cognitive test were similar between all trials after the 30 min cooling/no-cooling period (p? > ?.05). In conclusion, Tc cooling rates were faster with 1H and CJ during the first 10 min compared to NC, with minimal benefit associated with 2H cooling. Reaction time responses were not impacted by the use of the glove(s) or CJ.

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