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Related Experiment Videos

Exercise training-induced changes in respiratory muscles

S K Powers1, J Coombes, H Demirel

  • 1Center for Exercise Science, University of Florida, Gainesville, USA.

Sports Medicine (Auckland, N.Z.)
|August 1, 1997
PubMed
Summary

Exercise training enhances respiratory muscle enzyme activity and work capacity in animals and humans. However, its impact on overall endurance remains debated, possibly due to varying exercise protocols.

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Area of Science:

  • Exercise physiology
  • Respiratory muscle adaptation

Background:

  • Growing interest in how respiratory muscles adapt to exercise training.
  • Animal studies show increased oxidative and antioxidant enzymes and myosin heavy chain shifts in respiratory muscles with endurance training.

Purpose of the Study:

  • To review the adaptive strategies of respiratory muscles in response to exercise training.
  • To examine the effects of respiratory muscle training on whole-body endurance capacity.

Main Methods:

  • Review of animal and human studies on exercise training and respiratory muscles.
  • Analysis of studies investigating respiratory muscle training programs and their effects on exercise capacity.

Main Results:

  • Exercise training increases oxidative and antioxidant enzyme activities in respiratory muscles (animal models).

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  • Respiratory muscle training enhances ventilatory musculature work capacity in humans.
  • The effect of respiratory muscle training on whole-body endurance capacity is controversial and not consistently demonstrated.

    • Conclusions:

    • Exercise training induces significant adaptations in respiratory muscles.
    • The contribution of respiratory muscle performance to high-intensity exercise tolerance and maximal oxygen uptake is debated.
    • Further research is needed to clarify the role of respiratory muscle training in improving whole-body endurance, potentially by standardizing exercise evaluation tasks.