The Relationship Between the Aerodynamic Parameters of Voice and Perceptual Evaluation in the Iranian Population With or Without Voice Disorders

Summary Objectives Aerodynamic evaluations can provide useful information about the interaction between the respiratory and the phonation systems. The present study was conducted to investigate the relationship of maximum phonation time (MPT), vital capacity (VC), and phonation quotient (PQ) with pe...

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Bibliographic Details
Published in:Journal of voice 2017-03, Vol.31 (2), p.250.e9-250.e15
Main Authors: Aghajanzadeh, Mahshid, Darouie, Akbar, Dabirmoghaddam, Payman, Salehi, Abolfazl, Rahgozar, Mehdi
Format: Article
Language:English
Subjects:
Acoustics
Adolescent
Adult
Aged
Case-Control Studies
Dysphonia
GRBAS
Humans
Iran
Judgment
Lung - physiopathology
Maximum phonation time
Middle Aged
Otolaryngology
Phonation quotient
Predictive Value of Tests
Risk Factors
Speech Acoustics
Speech Perception
Speech-Language Pathology - methods
Spirometry
Time Factors
Vital Capacity
Vocal Cords - physiopathology
Voice Disorders - diagnosis
Voice Disorders - etiology
Voice Disorders - physiopathology
Voice Disorders - psychology
Voice Quality
Young Adult
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Summary:Summary Objectives Aerodynamic evaluations can provide useful information about the interaction between the respiratory and the phonation systems. The present study was conducted to investigate the relationship of maximum phonation time (MPT), vital capacity (VC), and phonation quotient (PQ) with perceptual evaluation in different types of dysphonia. The relationship between these parameters and the type of dysphonia was also examined. Materials and Methods The study participants consisted of 300 individuals with different types of dysphonia (104 women and 196 men) and 100 healthy samples (63 women and 37 men). A professional speech-language pathologist conducted the perceptual evaluation based on the G (grade) component of the GRBAS scale, which stands for grade, roughness, breathiness, asthenia, and strain. VC was measured using a spirometer and MPT using a stopwatch. PQ was calculated as the ratio of VC to MPT. Results The difference between the mean ± standard deviation of PQ, VC, and MPT were found to be significant at all the four degrees of dysphonia severity ( P  
ISSN:0892-1997
1873-4588
DOI:10.1016/j.jvoice.2016.07.014