作者
Louise M Burke, Megan L Ross, Laura A Garvican‐Lewis, Marijke Welvaert, Ida A Heikura, Sara G Forbes, Joanne G Mirtschin, Louise E Cato, Nicki Strobel, Avish P Sharma, John A Hawley
发表日期
2017/5/1
期刊
The Journal of physiology
卷号
595
期号
9
页码范围
2785-2807
简介
Key points
- Three weeks of intensified training and mild energy deficit in elite race walkers increases peak aerobic capacity independent of dietary support.
- Adaptation to a ketogenic low carbohydrate, high fat (LCHF) diet markedly increases rates of whole‐body fat oxidation during exercise in race walkers over a range of exercise intensities.
- The increased rates of fat oxidation result in reduced economy (increased oxygen demand for a given speed) at velocities that translate to real‐life race performance in elite race walkers.
- In contrast to training with diets providing chronic or periodised high carbohydrate availability, adaptation to an LCHF diet impairs performance in elite endurance athletes despite a significant improvement in peak aerobic capacity.
Abstract
We investigated the effects of adaptation to a ketogenic low carbohydrate (CHO), high fat diet (LCHF) during 3 weeks of intensified training on metabolism …
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LM Burke, ML Ross, LA Garvican‐Lewis, M Welvaert… - The Journal of physiology, 2017