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Muscle misuse voice disorders: description and classification

M D Morrison1, L A Rammage

  • 1Division of Otolaryngology, University of British Columbia, Vancouver General Hospital, Canada.

Acta Oto-Laryngologica
|May 1, 1993
PubMed
Summary
This summary is machine-generated.

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Voice disorders often called "functional" stem from laryngeal muscle misuse. We propose "muscle misuse voice disorders" to clarify this, introducing a new classification for these conditions.

Area of Science:

  • Laryngology
  • Speech-Language Pathology
  • Voice Science

Background:

  • Many voice disorders labeled "functional" are linked to laryngeal muscle misuse.
  • The term "functional" is ambiguous, necessitating a more descriptive classification.
  • Persistent abnormal laryngeal posture can cause organic changes like nodules and polyps.

Purpose of the Study:

  • To propose a new, descriptive term for voice disorders related to muscle misuse.
  • To introduce a refined classification system for various laryngeal muscle tension disorders.
  • To investigate the hypothesized link between posterior glottic chink and laryngeal muscle tension.

Main Methods:

  • Reviewing the etiological factors of "functional" voice disorders.
  • Proposing the term "muscle misuse voice disorders" as an alternative.

Related Experiment Videos

  • Developing a new classification based on specific laryngeal muscle tension states and conditions.

    • Main Results:

    • Identified "functional" voice disorders as primarily muscle misuse issues.
    • Proposed "muscle misuse voice disorders" to replace ambiguous terminology.
    • Evolved a new classification including laryngeal isometric states, glottic/supraglottic contractions, and specific conditions like conversion aphonia.

    Conclusions:

    • The term "muscle misuse voice disorders" offers greater clarity than "functional" voice disorders.
    • A new classification system effectively categorizes voice disorders based on laryngeal muscle tension and posture.
    • Understanding laryngeal muscle misuse is crucial for accurate diagnosis and treatment of voice pathologies.