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The aging lung.

D A Mahler, R A Rosiello, J Loke

    Clinics in Geriatric Medicine
    |May 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Aging naturally reduces lung function, decreasing elasticity and muscle strength. This impacts breathing capacity and gas exchange, making it crucial to differentiate normal aging from disease.

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    Area of Science:

    • Pulmonary physiology
    • Geriatric respiratory medicine

    Background:

    • The respiratory system undergoes significant structural and functional changes with age.
    • Decreased lung elasticity, increased chest wall stiffness, and reduced respiratory muscle strength are characteristic of aging.
    • These age-related changes can affect various respiratory parameters.

    Purpose of the Study:

    • To elucidate the structural and functional alterations in the aging respiratory system.
    • To highlight the impact of aging on lung mechanics, gas exchange, and respiratory control.
    • To emphasize the importance of distinguishing normal aging from pathological conditions.

    Main Methods:

    • Review of physiological changes associated with aging in the respiratory system.
    • Analysis of factors influencing age-related respiratory decline, including smoking.

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  • Synthesis of current understanding of lung aging.

    • Main Results:

    • Advancing age leads to decreased lung elasticity and respiratory muscle strength.
    • Forced vital capacity, expiratory flow rates, and diffusing capacity progressively decline with age.
    • Cigarette smoking exacerbates the age-related decline in expiratory flow rates.

    Conclusions:

    • Aging is associated with predictable declines in respiratory function.
    • Understanding these normal aging changes is essential for accurate diagnosis of respiratory diseases in older adults.
    • Differentiating aging effects from pathology is critical for appropriate patient management.