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The effect of glycaemic index of high carbohydrate diets consumed over 5 days on exercise energy metabolism and running capacity in males
How the sugar level of high-carb diets over 5 days affects energy use and running ability in men
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Abstract
No significant differences were found in fat and carbohydrate oxidation rates or endurance capacity between high glycaemic index and low glycaemic index diets after 5 days of high carbohydrate consumption.
- A total of nine healthy males participated in three treadmill runs to exhaustion.
- Running was performed after a habitual diet, a high carbohydrate/high glycaemic index diet, and a high carbohydrate/low glycaemic index diet.
- Both high carbohydrate diets resulted in lower plasma glycerol concentrations and higher carbohydrate oxidation rates compared to the control trial.
- The glycaemic index of the diet did not influence fat oxidation rates during running in the fasted state.
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