Three cycling studies explore how carbohydrate intake affects performance and durability. The first found that faster carbohydrate use led to greater deterioration in performance. The second compared 60 and 100 grams per hour, showing better performance with higher intake. The third examined intakes of 10, 90, 120, and 150 grams per hour, finding no significant difference in performance beyond 120 grams.
The studies suggest that carbohydrate availability influences performance, but the exact relationship is complex. Higher intakes can improve performance, but there is no additional benefit beyond a certain point. The findings highlight the importance of training to consume more carbs during exercise. For runners, these studies provide insights into how fueling strategies can impact performance. Read more culture coverage.
The practical takeaway is to find a fueling strategy that works for you through practice and experimentation. The studies emphasize the importance of considering fueling alongside pacing and training when aiming for a strong finish. For now, runners should consider how their nutrition plan supports their event demands. Related: TCS Toronto Waterfront Marathon Supports Diverse Causes.
This original Runner World brief is based on reporting from Marathon Handbook. Visit the source for its complete reporting, context and any later corrections.