Molecular and cellular biochemistry

How Exercise Affects Mitochondria Changes in Aging Muscle and What It Means for Mitochondrial Diseases

Updated

Abstract

Mitochondrial dysfunction in aging muscle is linked to symptoms such as limited mobility, fatigue, and weakness.

  • Impaired mitochondrial dynamics, including key processes like mitophagy, fusion, and fission, contribute to muscle aging.
  • Exercise may enhance mitochondrial health by improving the processes of biogenesis, dynamics, and turnover.
  • Molecular mechanisms activated by exercise can support mitochondrial function and promote muscle cell balance.
  • Key pathways such as AMPK, PGC-1α, and SIRT1 are involved in how exercise influences mitochondrial adaptations.
  • Exercise is associated with improved mitochondrial quality control and muscle function, offering potential as a non-drug intervention for mitochondrial diseases.

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Funding

Competing interests

Declarations. Consent for publication: Not applicable. Conflict of interest: The authors declare no competing interests. Ethical approval and consent to participate: Not applicable. Consent to participate: Not applicable.
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