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Adult normative data for phonatory aerodynamics in connected speech
Ali Lewandowski1, Amanda I Gillespie1, Samantha Kridgen2
1University of Pittsburgh Voice Center, Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
This study establishes normative phonatory aerodynamic values for adult connected speech, revealing significant differences based on age and gender. Males exhibit higher airflow, while older adults require more breaths and longer durations for speech.
Area of Science:
- Speech Science
- Aerodynamics
- Voice Production
Background:
- Understanding normative values for phonatory aerodynamics is crucial for diagnosing voice disorders.
- Previous research has not comprehensively established these values across diverse adult age groups and genders in connected speech.
Purpose of the Study:
- To establish normative values for phonatory aerodynamic measurements in connected speech.
- To investigate the effects of age and gender on these aerodynamic parameters in healthy adults.
Main Methods:
- Prospective data collection from 150 healthy adults (18+ years), stratified into three age groups (18-39, 40-59, 60+) and two gender groups (male, female).
- Participants read the Rainbow Passage, and connected speech samples were analyzed for breath number, reading duration, mean phonatory airflow, and inspiratory/expiratory airflow durations.
Main Results:
- Males demonstrated significantly higher mean phonatory airflow compared to females (P < .001).
- The oldest age group (60+ years) showed a significantly greater number of breaths and longer speech durations (inspiratory, expiratory, and total) compared to younger groups (P < .001).
Conclusions:
- This study provides essential normative data for phonatory aerodynamics in adult connected speech.
- Significant age-related and gender-related effects on phonatory aerodynamic measures were confirmed, highlighting their importance in clinical assessment.
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