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Related Experiment Videos

Influence of continuous speaking on ventilation.

J D Hoit1, H L Lohmeier

  • 1National Center for Neurogenic Communication Disorders and Department of Speech and Hearing Sciences, The University of Arizona, Tucson 85721, USA. hoit@u.arizona.edu

Journal of Speech, Language, and Hearing Research : JSLHR
|November 4, 2000
PubMed
Summary

Speaking increases ventilation by augmenting tidal volume and breathing frequency in healthy men. These respiratory changes during speech have implications for respiratory care and speech-language pathology.

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Area of Science:

  • Physiology
  • Respiratory Mechanics
  • Speech Science

Background:

  • Breathing patterns during speech are not fully understood.
  • The impact of speaking on respiratory control requires further investigation.

Purpose of the Study:

  • To investigate the effects of speaking on ventilation in healthy individuals.
  • To correlate speaking-induced ventilation changes with linguistic parameters.

Main Methods:

  • Utilized noninvasive techniques to measure chest wall motion and expired gas composition.
  • Studied 20 healthy young men during quiet breathing and prolonged speaking tasks.

Main Results:

  • Ventilation significantly increased during speaking compared to quiet breathing.

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  • Increased ventilation was achieved by augmenting both tidal volume and breathing frequency.
  • Speaking-related ventilation increases correlated with lung volume expenditure per syllable.

    • Conclusions:

    • Speaking alters respiratory patterns, primarily through increased tidal volume and breathing frequency.
    • Post-speaking breathing patterns may be affected for several minutes.
    • Findings are relevant for respiratory care practitioners and speech-language pathologists.