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AimTo assess whether, under conditions permitting full evaporation, body heat storage during physical activity measured by partitional calorimetry would be lower with warm relative to cold fluid ingestion because of a disproportionate increase in evaporative heat loss potential relative to internal heat transfer with the ingested fluid.
MethodsNine males cycled at 50% VO2max for 75 min at 23.6 ± 0...