Metabolic characteristics of keto-adapted ultra-endurance runners - Metabolism - Clinical and Experimental

http://www.metabolismjournal.com/article/S0026-0495(15)00334-0/abstract?elsca1=etoc&elsca2=email&elsca3=0026-0495_201603_65_3_&elsca4=Genetics%7CEndocrinology%7CDiabetes%7CCardiology

Background

Many successful ultra-endurance athletes have switched from a high-carbohydrate to a low-carbohydrate diet, but they have not previously been studied to determine the extent of metabolic adaptations.

Conclusion

Compared to highly trained ultra-endurance athletes consuming an HC diet, long-term keto-adaptation results in extraordinarily high rates of fat oxidation, whereas muscle glycogen utilization and repletion patterns during and after a 3 hour run are similar.


DOI: http://dx.doi.org/10.1016/j.metabol.2015.10.028