Laryngeal aerodynamics associated with selected voice disorders

Area of Science:

• Speech-Language Pathology
• Laryngology
• Acoustic Analysis

Background:

• Assessing laryngeal function is crucial for diagnosing voice disorders.
• Traditional measures like airflow during sustained vowels have limitations in predicting speech-related laryngeal function.
• Objective measures are needed for accurate diagnosis and treatment monitoring.

Purpose of the Study:

• To compare estimated subglottal air pressure and laryngeal airflow measures in adults with normal versus abnormal laryngeal function.
• To evaluate the predictive value of traditional airflow measures versus newer pressure and airflow metrics.
• To highlight the utility of these measures in understanding voice disorders and guiding therapy.

Main Methods:

• Measurement of estimated subglottal air pressure during speech production.
• Measurement of laryngeal airflow during speech production.
• Comparison of these measures between participants with normal laryngeal function and those with laryngeal abnormalities.

Main Results:

• Airflow during sustained vowel production was not a strong predictor of laryngeal function during speech.
• Subglottal air pressure and laryngeal airflow measures provide valuable insights into laryngeal function during speech.
• These measures offer a quantitative basis for assessing voice disorders.

Conclusions:

• Estimated subglottal air pressure and laryngeal airflow are more effective indicators of laryngeal function during speech than traditional airflow measures.
• These objective measures can guide voice therapy and quantitatively assess treatment outcomes.
• Further research into these measures can advance the understanding and management of voice disorders.