Cited by 51Muscle metabolism and nutritionMetabolism, Diabetes, and CancerCardiovascular and exercise physiology

Glycogen resynthesis in the absence of food ingestion during recovery from moderate or high intensity physical activity: novel insights from rat and human studies

Fournier, P.A, Bräu, L, Ferreira, L.D.M.C.-B, Fairchild, T, Raja, G, James, A, Palmer, T.N·2002·Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology

Abstract

The finding that during recovery from high intensity exercise, rats have the capacity to replenish their muscle glycogen stores even in the absence of food intake has provided us with an experimental model of choice to explore further this process. Our objective here is to share those questions arising from research carried out by others and ourselves on rats and humans that are likely to be of interest to comparative biochemists/physiologists. On the basis of our findings and those of others, it is proposed that across vertebrate species: (1). the capacity of muscles to replenish their glycogen stores from endogenous carbon sources is dependent on the type of physical activity and animal species; (2). lactate and amino acids are the major endogenous carbon sources mobilized for the resynthesis of muscle glycogen during recovery from exercise, their relative contributions depending on the duration of recovery and type of exercise; (3). the relative contributions of lactate glyconeogenesis and hepatic/renal gluconeogenesis to muscle glycogen synthesis is species- and muscle fiber-dependent; and (4). glycogen synthase and phosphorylase play an important role in the control of the rate of glycogen synthesis post-exercise, with the role of glucose transport being species-dependent.

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Crossref · 10.1016/s1095-6433(02)00254-4

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Authors
Fournier, P. A., Bräu, L., Ferreira, L. D. M. C.-B., Fairchild, T., Raja, G., James, A., & Palmer, T. N.
Affiliations
  • The University of Western Australia (AU)
  • James Cook University (AU)
Corresponding author
Fournier, P.A
Venue
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology
Publisher
Elsevier BV
Published
2002-11
Volume
133
Issue
3
Pages
755-763
ISSN
1095-6433 (ISSN-L)
OpenAlex
W1968477497
Cited by
51
References
49
Citations by year
2025: 1 · 2024: 3 · 2023: 1 · 2022: 2 · 2021: 2 · 2019: 2 · 2018: 1 · 2017: 2 · 2016: 3 · 2015: 4 · 2014: 1 · 2013: 1 · 2012: 2
FWCI
0.33
Type
journal article
Language
en
Open access
closed
Locations
  • Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology (publishedVersion)
  • PubMed (publishedVersion)
  • Murdoch University Research Portal (submittedVersion)
  • UWA Profiles and Research Repository (UWA) (submittedVersion)
  • Deakin Research Online (Deakin University) (submittedVersion)
Funders
  • Australian Research Council
  • National Health and Medical Research Council
  • National Medical Research Council
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
Keywords
muscle glycogen resynthesis, post-exercise recovery, food deprivation, lactate, amino acids, gluconeogenesis, glycogen synthase, glycogen phosphorylase, glucose transport, muscle fiber type, species differences, high-intensity exercise, moderate-intensity exercise
MeSH terms
Animals, Eating, Physical Exertion, Fasting, Glycogen, Humans, Muscle, Skeletal, Rats

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