Thermoregulation, Hydration and Performance over 6 Days of Trail Running in the Tropics

Abstract : The purpose of this study was to investigate thermal response, hydration and performance over a 6-day, 142-km trail running race in tropical conditions. 9 participants competed in the 2011 Gwadarun (30 °C ± 2.4 °C and 82 ± 4 % RH). Data were collected on days 1, 4 and 6. Gastrointestinal temperature (T gi ) and heart rate (HR) were measured using portable telemetry units, whereas blood samples were collected for hematocrit, osmolarity, plasma concentrations, alkaline reserves and creatine phosphokinase. The performances expressed in speed were correlated with both total body water and body mass
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Olivier Hue, Stéphane Henri, Michelle Baillot, Stéphane Sinnapah, André-Pierre Uzel. Thermoregulation, Hydration and Performance over 6 Days of Trail Running in the Tropics. International Journal of Sports Medicine, Thieme Publishing, 2014, pp.906-911. ⟨10.1055/s-0033-1361186⟩. ⟨hal-01135194⟩

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