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24-Hour Carb-Loading After Short, Intense ExerciseIncreases Glycogen Stores


24-Hour Carb-Loading After Short, Intense Exercise Increases Glycogen Stores

CRAWLEY, Australia--Carb-loading following a short-term bout of high-intensity exercise may increase glycogen levels within 24 hours, according to researchers from the University of Western Australia, whose study appeared in the June Medicine & Science in Sports & Exercise (34:980-6, 2002) (www.ms-se.com). Seven endurance-trained athletes cycled for 150 seconds at top speeds followed by 30 seconds of all-out cycling. In the following 24 hours, subjects were asked to consume 12 g/kg of lean body mass of high-carbohydrate foods with a high glycemic index.

Researchers found that muscle glycogen levels increased from preloading levels, an action that is comparable to the levels achieved when carb-loading over a two- to six-day regimen.

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