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Related Experiment Videos

[The effect of aging on respiratory muscle function].

Y Nishimura1, H Maeda, K Tanaka

  • 1First Department of Internal Medicine, Kobe University School of Medicine, Japan.

Nihon Kyobu Shikkan Gakkai Zasshi
|July 1, 1991
PubMed
Summary

Aging impairs respiratory muscle function, leading to weaker inspiratory muscles (PImax) and increased residual volume (RV/TLC) in healthy adults. This study quantifies age-related declines in lung function.

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Nihon Naika Gakkai zasshi. The Journal of the Japanese Society of Internal Medicine·1998

Area of Science:

  • Pulmonology
  • Gerontology
  • Physiology

Context:

  • Aging is associated with physiological changes affecting respiratory function.
  • Respiratory muscle strength is crucial for maintaining adequate ventilation.
  • Understanding age-related changes in respiratory mechanics is vital for clinical assessment.

Purpose:

  • To investigate the impact of aging on respiratory muscle function in healthy individuals.
  • To evaluate maximal expiratory mouth pressure (PEmax) and maximal inspiratory mouth pressure (PImax) in relation to age and sex.
  • To explore the correlation between respiratory muscle function, lung volumes, and age.

Summary:

  • Respiratory muscle function tests (PEmax, PImax) were conducted on 116 healthy subjects.
  • Both PEmax and PImax demonstrated significant age-related declines and were higher in males than females.

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  • A significant inverse correlation was observed between age and RV/TLC, suggesting inspiratory muscle weakness contributes to increased residual volume with aging.

    • Impact:

    • Provides normative data on age- and sex-related changes in respiratory muscle strength.
    • Highlights the potential role of inspiratory muscle weakness in altered lung volumes in older adults.
    • Informs clinical evaluation and management strategies for respiratory conditions in aging populations.