Head pre-cooling improves 5-km time-trial performance in male amateur runners in the heat.

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dc.contributor.authorCoelho, Leonardo Gomes Martins
dc.contributor.authorFerreira Júnior, João Batista
dc.contributor.authorWilliams, Thomas B.
dc.contributor.authorLima, André Maia
dc.contributor.authorBorba, Diego de Alcantara
dc.contributor.authorSilva, Cristiano D.
dc.contributor.authorCoelho, Daniel Barbosa
dc.contributor.authorBarros, Cristiano Lino Monteiro de
dc.contributor.authorPrado, Luciano Sales
dc.contributor.authorGarcia, Emerson Silami
dc.date.accessioned2022-11-01T20:31:38Z
dc.date.available2022-11-01T20:31:38Z
dc.date.issued2021pt_BR
dc.description.abstractThis study aimed to evaluate the effect of head pre-cooling on the 5-km time-trial perfor- mance of amateur runners in the heat. In a counterbalanced design, 15 male amateur run- ners (22.6 ± 3.5 y; VO2 max in heat 42.3 ± 4.4 mLO2/kg/min) completed two 5-km time trials performed in the heat (35°C, 50% relative humidity). In one trial (HCOOL), partici- pants underwent 20 min of head cooling in a temperate environment (23°C, 70% relative humidity) prior to exercise. In another trial (CON), exercise was preceded by 20 min of rest under the same temperature conditions. Exercise time was shorter in HCOOL (25 min and 36 s ± 3 min) compared to CON (27 ± 3 min; p = 0.02). Rectal tempera- ture was reduced during the pre-exercise intervention in HCOOL (p < 0.001), but not in CON (p = 0.55). Relative changes in rectal temperature and mean head temperature were lower throughout HCOOL when compared with CON condition (p = 0.005 and p = 0.022, respectively). Mean skin temperature, heart rate, and rating of perceived exer- tion did not differ between HCOOL and CON conditions throughout exercise (p = 0.20, p = 0.52 and 0.31, respectively). Thermal comfort was lower in HCOOL condition in pre-exercise (p = 0.014) with no differences observed throughout exercise (p = 0.61). 5-km running performance in a hot environment was improved after a 20-min head cool- ing intervention, suggesting that this method may be practical as pre-cooling strategy and easily administered to both professional and amateur runners alike.pt_BR
dc.identifier.citationCOELHO, L. G. M. et al. Head pre-cooling improves 5-km time-trial performance in male amateur runners in the heat. Scandinavian Journal of Medicine & Science in Sports, v. 31, p. 1753-1763, 2021. Disponível em: <https://onlinelibrary.wiley.com/doi/10.1111/sms.13985>. Acesso em: 11 out. 2022.pt_BR
dc.identifier.doihttps://doi.org/10.1111/sms.13985pt_BR
dc.identifier.issn1600-0838
dc.identifier.urihttp://www.repositorio.ufop.br/jspui/handle/123456789/15716
dc.identifier.uri2https://onlinelibrary.wiley.com/doi/10.1111/sms.13985pt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.subjectEndurance exercisept_BR
dc.subjectFatiguept_BR
dc.subjectSelf-pacedpt_BR
dc.subjectThermoregulationpt_BR
dc.titleHead pre-cooling improves 5-km time-trial performance in male amateur runners in the heat.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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