Carbohydrate supplementation stabilises plasma sodium during training with high intensity.

Background: Investigations of the effect of beverages containing carbohydrates, only, on the sodium and fluid balance during intermittent exercise of high intensity are rare. Therefore, we compared the effects of water and carbohydrate supplementation on plasma, blood volume, and electrolyte shifts during intermittent exercise.

Methods: Ten male subjects performed an intermittent exercise test twice.