Glycogen resynthesis in skeletal muscle following resistive exercise

Pascoe, David D., Costill, David L., Fink, William J., Robergs, Robert A., & Zachwieja, Jeffrey J. (1993) Glycogen resynthesis in skeletal muscle following resistive exercise. Medicine and Science in Sports and Exercise, 25(3), pp. 349-354.

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Abstract

The purpose of this investigation was to determine the influence of post-exercise carbohydrate (CHO) intake on the rate of muscle glycogen resynthesis after high intensity weight resistance exercise in subjects not currently weight training. In a cross-over design, eight male subjects performed sets (mean = 8.8) of six single leg knee extensions at 70% of one repetition max until 50% of full knee extension was no longer possible. Total force application was equated between trials using a strain gauge interfaced to a computer. The subjects exercised in the fasted state. Post-exercise feedings were administered at 0 and 1 h consisting of either a 23% CHO solution (1.5 g•kg-1) or an equal volume of water (H2O). Total force production, preexercise muscle glycogen content, and degree of depletion (-40.6 and -44.3 mmol•kg−1 wet weight) were not significantly different between H2O and CHO trials. As anticipated during the initial 2-h recovery, the CHO trial had a significantly greater rate of muscle glycogen resynthesis as compared with the H2O trial. The muscle glycogen content was restored to 91%and75% of preexercise levels when water and CHO were provided after 6 h, respectively. © 1993 by the American College of Sports Medicine.

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ID Code: 96692
Item Type: Journal Article
Refereed: Yes
Keywords: carbohydrate; glucose; glycogen; insulin; lactic acid, adult; article; carbohydrate intake; diet restriction; exercise; gluconeogenesis; glucose blood level; glycogen synthesis; glycogenolysis; human; human experiment; human tissue; hypoglycemia; insulin blood level; male; muscle biopsy; normal human; priorit, Adult; Analysis of Variance; Blood Glucose; Dietary Carbohydrates; Exercise; Exertion; Gluconeogenesis; Glycogen; Glycolysis; Human; Insulin; Lactates; Leg; Male; Muscles; Random Allocation; Time Factors; Water
ISSN: 1530-0315
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Schools > School of Exercise & Nutrition Sciences
Copyright Owner: Copyright 1993 The American College of Sports Medicine
Deposited On: 08 Jul 2016 01:39
Last Modified: 08 Jul 2016 01:40

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