How Much Loading Does Water Resistance Voice Therapy Impose on the Vocal Folds? An Experimental Human Study.
Autor: | Laukkanen AM; Speech and Voice Research Laboratory, Faculty of Education, University of Tampere, Tampere, Finland. Electronic address: Anne-Maria.Laukkanen@uta.fi., Geneid A; Department of Otolaryngology and Phoniatrics-Head and Neck Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland., Bula V; Institute of Thermomechanics of the Czech Academy of Sciences, Prague, Czech Republic., Radolf V; Institute of Thermomechanics of the Czech Academy of Sciences, Prague, Czech Republic., Horáček J; Institute of Thermomechanics of the Czech Academy of Sciences, Prague, Czech Republic., Ikävalko T; Speech and Voice Research Laboratory, Faculty of Education, University of Tampere, Tampere, Finland., Kukkonen T; Unit of Logopedics, Faculty of Social Sciences, University of Tampere, Tampere Finland., Kankare E; Ear and Oral Diseases, Department of Phoniatrics, Tampere University Hospital, Tampere, Finland., Tyrmi J; Speech and Voice Research Laboratory, Faculty of Education, University of Tampere, Tampere, Finland. |
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Jazyk: | angličtina |
Zdroj: | Journal of voice : official journal of the Voice Foundation [J Voice] 2020 May; Vol. 34 (3), pp. 387-397. Date of Electronic Publication: 2018 Nov 22. |
DOI: | 10.1016/j.jvoice.2018.10.011 |
Abstrakt: | Objectives: Water resistance voice therapy applies phonation into water through a tube. This study investigates how strenuous this therapy can be for the vocal folds in terms of impact stress (IS). It further examines whether it is possible to estimate the IS using the contact quotient (CQ) and maximum derivative from an electroglottogram (EGG). Study Design: Experimental study. Methods: A male participant sustained a rounded back vowel [u:] or [o:] at a comfortable speaking pitch and loudness, and phonated into a silicone "Lax Vox" tube submerged 2 cm in water. High-speed videolaryngoscopy was performed with a rigid scope. Oral air pressure (P Results: The CQ Conclusions: Based on the glottal area findings, water resistance therapy does not seem to increase vocal fold loading (in terms of increased IS) even if the increase of CQ (Copyright © 2018. Published by Elsevier Inc.) |
Databáze: | MEDLINE |
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