Nutritional recommendations for competing in the Ironman triathlon.

Jul 10, 2007Current sports medicine reports

Nutrition advice for athletes competing in the Ironman triathlon

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Circadian Biology on OpenScience ↗PubMed ↗

Abstract

Hyponatremia is highlighted as a major concern during the Ironman triathlon.

Carbohydrate depletion and dehydration may contribute to fatigue in ultraendurance events.
Triathletes are advised to assess fluid losses in practice to develop personalized fluid replacement strategies.
New methods of glycogen supercompensation could enhance dietary preparation for endurance events.
Improving fat oxidation while preserving glycogen stores is recommended for triathletes.
Consuming combined carbohydrates during the race may increase carbohydrate oxidation rates.
Further research is needed to create sport-specific nutritional recommendations for triathletes.

AI simplified

The Ironman triathlon is an ultraendurance event that requires specific training and individually tailored nutritional practice. Carbohydrate depletion and dehydration are likely causes of fatigue, yet hyponatremia has been highlighted as a major concern during such events. As a consequence, triathletes are recommended to evaluate fluid losses during practice sessions and develop personal fluid replacement programs to ensure fluid balance. With regard to dietary preparation there are new methods of glycogen supercompensation, recommendations for improving fat oxidation while maintaining endogenous glycogen stores, and evidence aligned to the benefit of consuming combined carbohydrate intake during the race to increase exogenous carbohydrate oxidation rates. Although this review evaluates recent findings in order to make nutritional recommendations, it requires, at times, the generalization from a variety of endurance/ultraendurance studies. This highlights the need for further research within the triathlete population in order that future recommendations are sport-specific and therefore more reliable.

Nutritional recommendations for competing in the Ironman triathlon.

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