Cited by 25Cardiovascular and exercise physiologyMuscle metabolism and nutritionAdipose Tissue and Metabolism

Scientific Challenges on Theory of Fat Burning by Exercise

Open access
Harris, M. Brennan, Kuo, Chia-Hua·2021·Frontiers in Physiology

Abstract

GRAPHICAL ABSTRACT: Exercise decreases abdominal fat mass, especially at high intensity. This outcome is not causally associated with fat burning, but better explained by carbon and nitrogen redistribution. Since abdominal fat tissue constantly releases fatty acids into circulation under post-absorptive condition with natural cell deaths, exercise diverts more post-meal carbon and nitrogen to muscle for energy repletion and cell regeneration after phagocytosis and stem cell homing. This in turn leads to concurrent fat mass loss and muscle mass gain. Respiratory ventilation during high-intensity aerobic exercise amplifies the competition for post-meal carbon and nitrogen against adipose tissues.

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Registry

Crossref · 10.3389/fphys.2021.685166

Cites

63 of 63 references verified0 citation errors · 0 not checkable

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  • Free fatty acids represent a crucial energy source for repairing skeletal muscle tissue.

    “Free fatty acids (FFA) represent a crucial energy source for repairing skeletal muscle tissue [5]”

    From High-intensity interval training or lactate administration combined with aerobic training enhances visceral fat loss while promoting VMH neuroplasticity in female rats (2024) · cites this paper as [5]

    The Scientific Challenges section proposes a possible role for fatty acids in repairing exercise-induced tissue damage, but says the physiological significance of their increased release remains unclear. It does not establish that free fatty acids are a crucial energy source for skeletal muscle repair. The Concluding Remarks likewise say their role in repairing post-exercise damage needs further investigation (page numbers unavailable). (LLM, conf=0.88)

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1 retracted

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Authors
Harris, M. B., & Kuo, C.-H.
Affiliations
  • William & Mary (US)
  • University of Taipei (TW)
Corresponding author
Kuo, Chia-Hua
Venue
Frontiers in Physiology
Published
2021-07-06
Volume
12
Pages
685166-685166
ISSN
1664-042X (ISSN-L)
OpenAlex
W3182377396
Cited by
25
References
64
Citations by year
2026: 5 · 2025: 9 · 2024: 6 · 2023: 1 · 2022: 2 · 2021: 2
FWCI
3.10
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Physiology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
abdominal fat, fatty acid oxidation, lipolysis, exercise intensity, adipose tissue, muscle regeneration, meal timing, muscle mass, post-exercise metabolism

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