Cited by 247Cardiovascular and exercise physiologyMitochondrial Function and PathologyExercise and Physiological Responses

Training-Induced Changes in Mitochondrial Content and Respiratory Function in Human Skeletal Muscle

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Granata, Cesare, Jamnick, Nicholas A., Bishop, David J.·2018·Sports Medicine

Abstract

A sedentary lifestyle has been linked to a number of metabolic disorders that have been associated with sub-optimal mitochondrial characteristics and an increased risk of premature death. Endurance training can induce an increase in mitochondrial content and/or mitochondrial functional qualities, which are associated with improved health and well-being and longer life expectancy. It is therefore important to better define how manipulating key parameters of an endurance training intervention can influence the content and functionality of the mitochondrial pool. This review focuses on mitochondrial changes taking place following a series of exercise sessions (training-induced mitochondrial adaptations), providing an in-depth analysis of the effects of exercise intensity and training volume on changes in mitochondrial protein synthesis, mitochondrial content and mitochondrial respiratory function. We provide evidence that manipulation of different exercise training variables promotes specific and diverse mitochondrial adaptations. Specifically, we report that training volume may be a critical factor affecting changes in mitochondrial content, whereas relative exercise intensity is an important determinant of changes in mitochondrial respiratory function. As a consequence, a dissociation between training-induced changes in mitochondrial content and mitochondrial respiratory function is often observed. We also provide evidence that exercise-induced changes are not necessarily predictive of training-induced adaptations, we propose possible explanations for the above discrepancies and suggestions for future research.

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  • Training volume influences changes in mitochondrial content, whereas relative exercise intensity determines alterations in mitochondrial respiratory function.

    “Training volume plays a crucial role in influencing changes in mitochondrial content, whereas relative exercise intensity is a key factor in determining alterations in mitochondrial respiratory function [68].”

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  1. Hood DA. Mechanisms of exercise-induced mitochondrial biogenesis in skeletal muscle. Appl Physiol Nutr Metab. 2009;34(3):465-72.

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Authors
Granata, C., Jamnick, N. A., & Bishop, D. J.
Affiliations
  • Monash University (AU)
  • Victoria University (AU)
  • Edith Cowan University (AU)
Corresponding author
Granata, Cesare
Venue
Sports Medicine
Published
2018-06-22
Volume
48
Issue
8
Pages
1809-1828
ISSN
  • 0112-1642 (ISSN-L)
  • 1179-2035
OpenAlex
W2809197837
Cited by
247
References
177
Citations by year
2026: 27 · 2025: 37 · 2024: 30 · 2023: 33 · 2022: 34 · 2021: 32 · 2020: 23 · 2019: 25 · 2018: 6
FWCI
5.03
Type
journal article
Language
en
Open access
Locations
  • Sports Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Victoria University Research Repository (Victoria University) (submittedVersion)
  • Research Online (Edith Cowan University) (submittedVersion)
  • Deakin Research Online (Deakin University) (submittedVersion)
  • Figshare (submittedVersion, cc-by)
Topics
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
Keywords
mitochondrial biogenesis, mitochondrial content, mitochondrial respiratory function, endurance training, skeletal muscle, exercise intensity, training volume, mitochondrial translation, sedentary lifestyle, training effects
MeSH terms
Adaptation, Physiological, Exercise Test, Humans, Mitochondria, Muscle, Oxygen Consumption, Exercise, Muscle, Skeletal, Cell Respiration, Physical Conditioning, Human

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