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Aerobic exercise training in heart failure: impact on sympathetic hyperactivity and cardiac and skeletal muscle

P C Brum1, A V N Bacurau, A Medeiros

  • 1Departamento de Biodinâmica do Movimento do Corpo Humano, Escola de Educação Física e Esporte, Universidade de São Paulo, Brasil. pcbrum@usp.br

Brazilian Journal of Medical and Biological Research = Revista Brasileira De Pesquisas Medicas E Biologicas
|September 30, 2011
PubMed

Insights

Aerobic exercise training effectively combats sympathetic hyperactivity in heart failure. This approach improves cardiac function, reduces skeletal myopathy, and aids cardiac remodeling in both humans and animals.

Area of Science:

  • Cardiovascular Disease Research
  • Exercise Physiology
  • Heart Failure Pathophysiology

Background:

  • Heart failure is a major cause of death, characterized by chronic sympathetic hyperactivity.
  • Sympathetic hyperactivity worsens cardiac dysfunction, remodeling, and skeletal muscle issues in heart failure.
  • This hyperactivity is linked to poor prognosis in cardiovascular disease.

Purpose of the Study:

  • To review the impact of aerobic exercise on sympathetic hyperactivity in heart failure.
  • To examine exercise's effects on cardiac function, remodeling, and skeletal myopathy.
  • To explore the underlying mechanisms of aerobic exercise's benefits in heart failure.

Main Methods:

  • Literature review of studies on aerobic exercise training in human and animal models of heart failure.
  • Analysis of research focusing on neurohumoral excitation and its markers.
  • Examination of data on cardiac structure, function, and skeletal muscle pathology.

Main Results:

  • Aerobic exercise training significantly counteracts sympathetic hyperactivity in heart failure.
  • Exercise improves cardiac function and mitigates adverse cardiac remodeling.
  • Skeletal myopathy associated with heart failure is ameliorated by aerobic exercise.

Conclusions:

  • Aerobic exercise is a viable strategy to manage sympathetic hyperactivity in heart failure.
  • Exercise training offers multifaceted benefits, improving cardiac and skeletal muscle health.
  • Understanding exercise mechanisms can optimize heart failure treatment protocols.

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