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Publication
Effect of resonance tube technique on oropharyngeal geometry and voice in individuals with Parkinson's Disease
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Advisor(s)
Abstract(s)
Objective. To verify the immediate effect of the flexible resonance tube vocal technique on the oropharyngeal
geometry and vocal acoustic parameters of individuals with Parkinson’s disease (PD) and to study the
correlation between oropharyngeal geometry and the intensity and fundamental frequency (f0) parameters of the voice.
Methods. Forty individuals participated—20 with PD and 20 healthy individuals, with a mean age of 60.95
(§ 5.69) years. There were 10 men and 10 women in each group. All underwent pharyngometric analysis of the
vocal tract and voice acoustics parameters before and after use of the vocal technique with a flexible resonance tube.
Results. After the technique, there was a reduction in pharyngeal cavity volume only in females in the healthy
group, a reduction in shimmer values in females in both groups and males in PD group and an improvement in
noise parameters in females in the PD group. There was a negative correlation between vocal tract volume and
intensity, between f0 and vocal tract volume, between f0 and oropharyngeal junction area, between f0 and oral
cavity volume as well as a positive correlation between oral cavity length and f0.
Conclusion. The vocal technique with the flexible resonance tube applied to individuals with PD improved the
subjects’ voice quality in the perceptual and acoustic voice parameters. Regarding the oropharyngeal geometry, it was possible to observe its correlation with the parameters of vocal intensity and frequency in the studied population.
Description
Keywords
Oropharynx Pharynx Larynx Voice Evaluation
Citation
Publisher
Elsevier