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Physiological aspects of a vocal exercise

N Elliot1, J Sundberg, P Gramming

  • 1Department of Speech, Music and Hearing, KTH, Stockholm, Sweden.

Journal of Voice : Official Journal of the Voice Foundation
|June 1, 1997
PubMed
Summary
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This study investigated vocal exercises using multichannel electroglottography (MEGG) to measure larynx height. Findings show prolonged /b:/ exercises significantly lower the larynx, offering insights into phonatory behavior.

Area of Science:

  • Laryngology
  • Speech Science
  • Acoustic Phonetics

Background:

  • Vocal exercises are often based on intuitive understanding rather than documented physiological effects.
  • An elevated larynx position is commonly linked to hyperfunctional voice use, potentially due to increased vocal fold adduction.

Purpose of the Study:

  • To document the phonatory behavior, specifically larynx position, during a specific vocal exercise.
  • To investigate the effect of prolonged /b:/ consonant production on laryngeal height.

Main Methods:

  • Utilized multichannel electroglottography (MEGG) to measure laryngeal vertical position.
  • Subjects performed prolonged /b:/ vocal exercises; MEGG was calibrated to confirm a linear relationship with larynx height.
  • Included both healthy individuals and patients with dysphonia.

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Main Results:

  • The vocal exercise induced significant vertical displacements of the larynx.
  • The prolonged /b:/ consonant specifically demonstrated a tendency to lower the larynx compared to other consonants.
  • MEGG calibration confirmed reliable measurements of larynx height.

Conclusions:

  • Prolonged /b:/ vocal exercises demonstrably alter larynx position, specifically lowering it.
  • This finding provides objective data on the physiological effects of vocal training techniques.
  • Understanding these effects can inform clinical practice for voice disorders and training.