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Hot water immersion acutely reduces peripheral glucose uptake in young healthy males: An exploratory crossover randomized controlled trial.
Maley, Matthew J; Hunt, Andrew P; Stewart, Ian B; Weier, Steven; Holland, Justin; Leicht, Christof A; Minett, Geoffrey M.
Afiliação
  • Maley MJ; Environmental Ergonomics Research Centre, Loughborough School of Design and Creative Arts, Loughborough University, Loughborough, UK.
  • Hunt AP; Queensland University of Technology, Faculty of Health, School of Exercise and Nutrition Sciences, Kelvin Grove, QLD, Australia.
  • Stewart IB; Queensland University of Technology, Faculty of Health, School of Exercise and Nutrition Sciences, Kelvin Grove, QLD, Australia.
  • Weier S; Queensland University of Technology, Faculty of Health, School of Biomedical Sciences, Brisbane, QLD, Australia.
  • Holland J; Queensland University of Technology, Faculty of Health, School of Exercise and Nutrition Sciences, Kelvin Grove, QLD, Australia.
  • Leicht CA; Queensland University of Technology, Faculty of Health, School of Biomedical Sciences, Brisbane, QLD, Australia.
  • Minett GM; Queensland University of Technology, Faculty of Health, School of Exercise and Nutrition Sciences, Kelvin Grove, QLD, Australia.
Temperature (Austin) ; 10(4): 434-443, 2023.
Article em En | MEDLINE | ID: mdl-38130658
ABSTRACT
Whether glucose concentration increases during heat exposure because of reduced peripheral tissue uptake or enhanced appearance is currently unknown. This study aimed to report glucose concentrations in both capillary and venous blood in response to a glucose challenge during passive heating (PH) to assess whether heat exposure affects glucose uptake in healthy males. Twelve healthy male participants completed two experimental sessions, where they were asked to undertake an oral glucose tolerance test (OGTT) whilst immersed in thermoneutral (CON, 35.9 (0.6) °C) and hot water (HWI, 40.3 (0.5) °C) for 120 min. Venous and capillary blood [glucose], rectal temperature, and heart rate were recorded. [Glucose] area under the curve for HWI venous (907 (104) AU) differed from CON venous (719 (88) AU, all P < 0.001). No other differences were noted (P > 0.05). Compared with CON, HWI resulted in greater rectal temperature (37.1 (0.3) °C versus 38.6 (0.4) °C, respectively) and heart rate (69 (12) bpm versus 108 (11) bpm, respectively) on cessation (P < 0.001). An OGTT results in similar capillary [glucose] during hot and thermoneutral water immersion, whereas venous [glucose] was greater during HWI when compared with CON. This indicates that peripheral tissue glucose uptake is acutely reduced in response to HWI. Abbreviations AUC Area under the curve; CON Thermoneutral immersion trial; HWI Hot water immersion trial; OGTT Oral glucose tolerance test; PH Passive heating; T-msk Mean skin temperature; Trec Rectal temperature.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article