Heat and Dehydration Increase Carbohydrate Use During Endurance Exercise — Heat Is the Dominant Driver
Highlight
– Endurance exercise in hot conditions increases carbohydrate oxidation (SMD 0.29, P = 0.006) and muscle glycogen use (SMD 0.78, P = 0.006) compared to temperate conditions.
– Dehydration increases carbohydrate oxidation (SMD 0.31, P = 0.002) and glycogen use (SMD 0.62, P = 0.003), but this effect is most evident when exercise is performed in the heat (oxidation SMD 0.37, P = 0.001) rather than in temperate environments.
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