PMID: 11915778Mar 28, 2002Paper

Carbohydrate-loading during the follicular phase of the menstrual cycle: effects on muscle glycogen and exercise performance

International Journal of Sport Nutrition and Exercise Metabolism
D R PaulD R Lamb

Abstract

The effects of employing a high-carbohydrate diet (carbohydrate-loading) to increase glycogen storage in skeletal muscle are not well established in female athletes. On 4 occasions--2 familiarization trials and 2 experimental trials--6 well-trained female subjects completed 6 x 15-min continuous intervals of cycling (12 min at 72% VO2max, 1 min at maximal effort, and 2 min at 50% VO2max), followed by a time trial 15 min later. The women consumed their habitual diets (HD; 6-7 g carbohydrate/kg lean body mass) for 3 days after the second familiarization trial and before the first experimental trial. During the 3 days following the first experimental trial, the subjects consumed a high-carbohydrate diet (CD; 9-10 g carbohydrate/kg lean body mass) prior to the second experimental trial. Mean (+/-SEM) pre-exercise muscle glycogen concentrations were greater after CD versus HD (171.9+/-8.7 vs. 131.4+/-10.3 mmol/kg wet weight, P < 0.003). Although 4 of the 6 subjects improved their time-trial performance after CD, mean performance for the time trial was not significantly different between diets (HD: 763.9+/-35.6 s; CD: 752.9+/-30.1 s). Thus, female cyclists can increase their muscle glycogen stores after a carbohydrate-loading diet du...Continue Reading

Citations

Jun 14, 2003·Current Opinion in Clinical Nutrition and Metabolic Care·Edith M Peters
Mar 28, 2020·European Journal of Applied Physiology·Shannon FlynnBrent Ruby
Jul 9, 2008·Current Sports Medicine Reports·Darlene A Sedlock
Mar 1, 2018·Journal of Strength and Conditioning Research·Meredith G MockAbbie E Smith-Ryan
Sep 14, 2021·Sports Medicine·Bryan Holtzman, Kathryn E Ackerman

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