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Skeletal muscle dysfunction in chronic obstructive pulmonary disease.

E Berton1, R Antonucci, P Palange

  • 1Servizio di Fisiopatologia Respiratoria, Dipartimento di Medicina Clinica, Università La Sapienza, Roma, Italy.

Monaldi Archives for Chest Disease = Archivio Monaldi Per Le Malattie Del Torace
|March 13, 2002
PubMed
Summary

Skeletal muscle dysfunction significantly impacts exercise capacity and quality of life in patients with chronic obstructive pulmonary disease (COPD). While partially reversible, further research is needed to understand underlying cellular and molecular mechanisms for better therapeutic interventions.

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Area of Science:

  • Pulmonary Medicine
  • Exercise Physiology
  • Muscle Biology

Background:

  • Skeletal muscle dysfunction is a key factor limiting exercise capacity and quality of life in chronic obstructive pulmonary disease (COPD) patients.
  • Research has identified morphological, biochemical, and physiological changes in COPD-related muscle dysfunction.
  • Uncertainties remain regarding the intrinsic vs. environmental causes of muscle alterations, and the impact of aging, inactivity, and medications.

Purpose of the Study:

  • To review current knowledge on skeletal muscle dysfunction in COPD.
  • To highlight the role of factors like oxidative stress, inflammation, and nutritional deficiencies.
  • To summarize potential therapeutic implications for managing COPD patients.

Main Methods:

  • Literature review focusing on skeletal muscle alterations in COPD.

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  • Analysis of existing research on morphological and biochemical changes.
  • Synthesis of findings on physiological consequences and therapeutic interventions.

    • Main Results:

    • Skeletal muscle dysfunction contributes significantly to reduced exercise tolerance and impaired quality of life in COPD.
    • Muscle dysfunction involves intrinsic muscle changes and consequences of the altered systemic environment.
    • While partially reversible with interventions like training, the precise cellular and molecular drivers require further investigation.

    Conclusions:

    • Skeletal muscle dysfunction is a critical, partially reversible complication in COPD.
    • Further cellular and molecular studies are essential to elucidate the roles of oxidative stress, inflammation, and nutrition.
    • Understanding these factors will inform the development of targeted therapeutic strategies for COPD patients.