The Role of Muscle Glycogen Content and Localization in High-Intensity Exercise Performance: A Placebo-Controlled Trial

Purpose We investigated the coupling between muscle glycogen content and localization and high-intensity exercise performance using a randomized, placebo-controlled, parallel-group design with emphasis on single-fiber subcellular glycogen concentrations and sarcoplasmic reticulum Ca2+ kinetics. Methods Eighteen well-trained participants performed high-intensity intermittent glycogen-depleting exercise, followed by randomization to a high- (CHO; ~1 g CHO·kg−1·h−1; n = 9) or low-carbohydrate placebo diet (PLA,
Source: Medicine and Science in Sports and Exercise - Category: Sports Medicine Tags: BASIC SCIENCES Source Type: research