Crisis of confidence averted: Impairment of exercise economy and performance in elite race walkers by ketogenic low carbohydrate, high fat (LCHF) diet is reproducible
Crisis of confidence averted: Impairment of exercise economy and performance in elite race walkers by ketogenic low carbohydrate, high fat (LCHF) diet is reproducible
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DOI：
10.1371/journal.pone.0234027
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发表时间：
2020-06-04
期刊：
影响因子：
3.7
通讯作者：
Ross, Megan L.
中科院分区：
文献类型：
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作者：
Burke, Louise M.;Sharma, Avish P.;Ross, Megan L.
我们对世界级耐力运动员强化训练的生酮低碳水化合物(CHO)、高脂肪饮食(LCHF)进行了研究，并进一步研究了恢复CHO利用率后与高或周期CHO饮食相比对运动成绩的影响。方法在基线测试(国际田联认可的10000米比赛、有氧能力和亚极量步行经济)后，优秀男女竞走运动员进行了25d的监督训练和对能量匹配饮食的重复测试：高CHO利用率(8.6 kg(-1).d(-1)CHO，2.1g·kg(-1)·d(-1)蛋白质；1.2g·kg(-1)·d(-1)脂肪)，包括运动前/运动中/运动后的CHO(n=8)：类似的常量营养素摄入量在几天内/两天之间分期，以控制不同运动时的低和高CHO利用率(PCHO，n=8)；和LCHF(n=8)
IntroductionWe repeated our study of intensified training on a ketogenic low-carbohydrate (CHO), high-fat diet (LCHF) in world-class endurance athletes, with further investigation of a "carryover" effect on performance after restoring CHO availability in comparison to high or periodised CHO diets.MethodsAfter Baseline testing (10,000 m IAAF-sanctioned race, aerobic capacity and submaximal walking economy) elite male and female race walkers undertook 25 d supervised training and repeat testing (Adapt) on energy-matched diets: High CHO availability (8.6 g.kg(-1).d(-1) CHO, 2.1 g.kg(-1).d(-1) protein; 1.2 g.kg(-1).d(-1) fat) including CHO before/during/after workouts (HCHO, n = 8): similar macronutrient intake periodised within/between days to manipulate low and high CHO availability at various workouts (PCHO, n = 8); and LCHF (