Pressure, flow and glott al areawaveform profi le changes during phonati on using the Acapella Choice® device

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61384984%3A51110%2F21%3AN0000057" target="_blank" >RIV/61384984:51110/21:N0000057 - isvavai.cz</a>
Result on the web
<a href="https://www.fupress.com/isbn/9788855184496" target="_blank" >https://www.fupress.com/isbn/9788855184496</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.36253/978-88-5518-449-6" target="_blank" >10.36253/978-88-5518-449-6</a>

Result language
angličtina
Original language name
Pressure, flow and glott al areawaveform profi le changes during phonati on using the Acapella Choice® device
Original language description
Vibratory positive expiratory pressure devices (PEP) are now considered a suitable resource for voice therapy. PEP devices produce large low frequency intraoral pressure modulations in the vocal tract that influences glottal behaviour. In this study, the impact of phonation into an Acapella Choice device (a type of PEP) on glottal behaviour was assessed. Phonation was produced by 2 males and 1 female participant whilst audio, EGG, pressure, flow and high-speed videoendoscopic data were collected. The results showed a systematic effect on glottal behaviour with changes in pressure caused by the Acapella device. When Acapella pressure was maximum, vocal fold vibration was hindered (lower: EGG amplitude, airflow, contact quotient (CQ), fundamental frequency (fo) and glottal area (GA)) as Acapella pressure reduced the opposite trend was observed. This systematic change in the supraglottic pressure modulates the behaviour of the vocal folds between what seems to be hindered and aided vibration. This behaviour confirms a mechanistic impact of the Acapella device on the phonatory apparatus that can be used for specific voice therapy purposes.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Models and Analysis of Vocal Emissions for Biomedical Applications
ISBN
978-88-5518-448-9
ISSN
2704-5846
e-ISSN
2704-601X
Number of pages
4
Pages from-to
135-138
Publisher name
University of Florence, Italy
Place of publication
Firenze, Italy
Event location
Firenze
Event date
Dec 14, 2021
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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