Cited by 51Sports Performance and TrainingMuscle metabolism and nutritionCardiovascular and exercise physiology

Optimizing training adaptations by manipulating glycogen

Baar, Keith, McGee, Sean·2008·European Journal of Sport Science

Abstract

Abstract For decades, glycogen has been recognized as a storage form of glucose within the liver and muscles. Only recently has a greater role for glycogen as a regulator of metabolic signalling been suggested. Glycogen either directly or indirectly regulates a number of signalling proteins, including the adenosine‐5′‐phosphate‐ (AMP‐) activated protein kinase (AMPK) and p38 mitogen‐activated protein kinase (MAPK). AMPK and p38 MAPK play a significant role in controlling the expression and activity of the peroxisome proliferator activated receptor γ coactivators (PGCs), respectively. The PGCs can directly increase muscle mitochondrial mass and endurance exercise performance. As low muscle glycogen is generally associated with greater activation of these pathways, the concept of training with low glycogen to maximize the physiological adaptations to endurance exercise is gaining acceptance in the scientific community. In this review, we evaluate the scientific basis for this philosophy and propose some practical applications of this philosophy for the general population as well as elite endurance athletes.

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Crossref · 10.1080/17461390801919094

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67 of 67 references verified0 citation errors · 0 not checkable

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Authors
Baar, K., & McGee, S.
Affiliations
  • University of Dundee (GB)
  • The University of Melbourne (AU)
Corresponding author
Baar, Keith
Venue
European Journal of Sport Science
Publisher
Wiley
Published
2008-03
Volume
8
Issue
2
Pages
97-106
ISSN
  • 1536-7290 (ISSN-L)
  • 1746-1391
OpenAlex
W2171366000
Cited by
51
References
67
Citations by year
2025: 3 · 2024: 3 · 2023: 1 · 2022: 1 · 2021: 2 · 2020: 1 · 2019: 4 · 2018: 5 · 2017: 1 · 2016: 5 · 2015: 5 · 2014: 1 · 2013: 3 · 2012: 2
FWCI
4.13
Type
journal article
Language
en
Open access
closed
Locations
European Journal of Sport Science (publishedVersion)
Topics
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
Keywords
muscle glycogen, glycogen depletion, endurance training adaptation, AMPK, p38 MAPK, mitochondrial biogenesis, endurance exercise performance, metabolic signalling, elite endurance athletes

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