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Body type and speech breathing.

J D Hoit, T J Hixon

    Journal of Speech and Hearing Research
    |September 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Body type influences breathing mechanics. Individuals with higher fatness exhibit deeper, slower breathing and greater chest deformation, impacting speech production differently than leaner individuals.

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    Area of Science:

    • Physiology
    • Biomechanics
    • Speech Science

    Background:

    • Breathing mechanics are crucial for speech production.
    • Body composition can influence physiological functions.
    • Understanding chest wall configuration in breathing is vital for speech disorders.

    Purpose of the Study:

    • To investigate how body type components (fatness, musculoskeletal development, linearity) affect breathing patterns during tidal breathing and speech.
    • To analyze differences in rib cage and abdominal contributions to lung volume changes across body types.
    • To explore potential underlying mechanisms for observed speech breathing differences.

    Main Methods:

    • Recorded rib cage and abdominal diameter changes in 12 adult males during tidal breathing and speech.

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  • Categorized subjects based on relative fatness, musculoskeletal development, and linearity.
  • Calculated lung volume, volume displacements, and chest wall configuration.

    • Main Results:

    • Tidal breathing varied by group: higher fatness subjects breathed deeper, slower, with more chest wall deformation.
    • Speech breathing showed significant differences: higher fatness subjects had greater abdominal contribution, excursions, and rib cage paradoxing.
    • Higher linearity subjects showed larger rib cage contribution and less chest wall deformation during speech.

    Conclusions:

    • Body type significantly impacts both tidal and speech breathing mechanics.
    • Differences in breathing patterns across body types suggest distinct underlying physiological mechanisms.
    • Findings have implications for evaluating and managing speech breathing disorders.