Journal of Applied Physiology Ad Instruments
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Appl Physiol 83: 1482-1485, 1997;
8750-7587/97 $5.00
This Article
Right arrow Full Text Free
Right arrow Full Text (PDF) Free
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Asp, S.
Right arrow Articles by Richter, E. A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Asp, S.
Right arrow Articles by Richter, E. A.

Vol. 83, Issue 5, 1482-1485, 1997

Impaired muscle glycogen resynthesis after a marathon is not caused by decreased muscle GLUT-4 content

Sven Asp, Thomas Rohde, and Erik A. Richter

Copenhagen Muscle Research Centre, August Krogh Institute, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark

Received 25 November 1996; accepted in final form 20 May 1997.

Asp, Sven, Thomas Rohde, and Erik A. Richter. Impaired muscle glycogen resynthesis after a marathon is not caused by decreased muscle GLUT-4 content. J. Appl. Physiol. 83(5): 1482-1485, 1997.---Our purpose was to investigate whether the slow rate of muscle glycogen resynthesis after a competitive marathon is associated with a decrease in the total muscle content of the muscle glucose transporter (GLUT-4). Seven well-trained marathon runners participated in the study, and muscle biopsies were obtained from the lateral head of the gastrocnemius muscle before, immediately after, and 1, 2, and 7 days after the marathon, as were venous blood samples. Muscle GLUT-4 content was unaltered over the experimental period. Muscle glycogen concentration was 758 ± 53 mmol/kg dry weight before the marathon and decreased to 148 ± 39 mmol/kg dry weight immediately afterward. Despite a carbohydrate-rich diet (containing at least 7 g carbohydrate · kg body mass-1 · day-1), the muscle glycogen concentration remained 30% lower than before-race values 2 days after the race, whereas it had returned to before-race levels 7 days after the race. We conclude that the total GLUT-4 protein content is unaltered in the lateral gastrocnemius after a competitive marathon and that the slow recovery of muscle glycogen after the race apparently involves factors other than changes in the total content of this protein.

human; endurance running; muscle damage; glycogen content

0161-7567/97 $5.00 Copyright © 1997 the American Physiological Society




This article has been cited by other articles:


Home page
 J. Physiol.Home page
M. D Boppart, S. Asp, J. F P Wojtaszewski, R. A Fielding, T. Mohr, and L. J Goodyear
Marathon running transiently increases c-Jun NH2-terminal kinase and p38{gamma} activities in human skeletal muscle
J. Physiol., August 1, 2000; 526(3): 663 - 669.
[Abstract] [Full Text] [PDF]

Home page
 J. Clin. Endocrinol. Metab.Home page
M. Krssak, K. F. Petersen, R. Bergeron, T. Price, D. Laurent, D. L. Rothman, M. Roden, and G. I. Shulman
Intramuscular Glycogen and Intramyocellular Lipid Utilization during Prolonged Exercise and Recovery in Man: A 13C and 1H Nuclear Magnetic Resonance Spectroscopy Study
J. Clin. Endocrinol. Metab., February 1, 2000; 85(2): 748 - 754.
[Abstract] [Full Text]

Home page
 J. Appl. Physiol.Home page
S. Asp, J. R. Daugaard, T. Rohde, K. Adamo, and T. Graham
Muscle glycogen accumulation after a marathon: roles of fiber type and pro- and macroglycogen
J Appl Physiol, February 1, 1999; 86(2): 474 - 478.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online