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Related Experiment Videos

Aerodynamic assessment of vocal function using hand-held spirometers.

D Rau, R L Beckett

    The Journal of Speech and Hearing Disorders
    |May 1, 1984
    PubMed
    Summary
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    Lightweight spirometers are feasible for assessing vocal function aerodynamics in adults. These compact devices can accurately measure vital capacity and phonation quotient, aiding in vocal health evaluations.

    Area of Science:

    • Speech-Language Pathology
    • Pulmonary Function Testing
    • Acoustic and Physiological Phonetics

    Background:

    • Clinical aerodynamic assessment of vocal function is crucial for diagnosing voice disorders.
    • Traditional spirometry equipment can be bulky and less accessible for routine clinical use.
    • There is a need for portable and cost-effective tools for voice aerodynamic analysis.

    Purpose of the Study:

    • To evaluate the clinical feasibility of using lightweight, compact spirometers for aerodynamic assessment of vocal function.
    • To determine the validity of vital capacity and phonation quotient measurements using handheld spirometers.
    • To develop a predictive formula for mean flow rate based on phonation quotient.

    Main Methods:

    • Nineteen healthy young adults participated in the study.

    Related Experiment Videos

  • Aerodynamic tasks were performed using a standard Collins wet spirometer for comparison.
  • Data from three handheld, lightweight spirometers were collected and analyzed.
  • Multiple regression analysis was used to predict mean flow rate.

    • Main Results:

    • Handheld spirometers demonstrated feasibility for clinical adaptation in vocal function assessment.
    • Measurements of vital capacity and phonation quotient showed validity when compared to a wet spirometer.
    • Vital capacity and maximum phonation time were significant predictors of mean flow rate.

    Conclusions:

    • Lightweight, compact spirometers are viable tools for aerodynamic assessment of vocal function in clinical settings.
    • These devices offer a practical alternative for evaluating key aerodynamic parameters related to voice production.
    • The study supports the use of handheld spirometers for accessible and valid vocal function testing.