Muscle tension dysphonia in Vietnamese female teachers

Journal of Voice : Official Journal of the Voice Foundation
Duong Duy NguyenJonathan R Livesey

Abstract

There has been no published research on muscle tension dysphonia (MTD) in speakers who use a tonal language. Using a sample of 47 Northern Vietnamese female primary school teachers with MTD, we aimed to discover whether professional voice users of tonal languages presented with the same symptoms of MTD as speakers of nontonal languages and whether they presented with additional symptoms as a result of speaking a tonal language. The vocal characteristics were assessed by use of a questionnaire and expert perceptual evaluation. Laryngeal features were assessed by photolaryngoscopy. The results showed that MTD was associated with a larger number of vocal symptoms than previously reported. However, the participants did not have the same vocal symptoms reported in English speakers, for example, hard glottal attack, pitch breaks, unusual speech rate, and glottal fry. Factor analysis of the vocal symptoms revealed three factors: "vocal fatigue/hyperfunction," "physical discomfort," and "voice quality," all of which demonstrated high reliability. The major laryngeal characteristic was a glottal gap. The glottal shapes observed included: 44.7% had an incomplete closure, 29.8% a posterior gap, 12.8% an hourglass-shaped gap, 8.5% a spindl...Continue Reading

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Citations

May 29, 2010·BMC Ear, Nose, and Throat Disorders·Viveka Lyberg-ÅhlanderLucyna Schalén
May 14, 2016·International Journal of Speech-language Pathology·Ben PhȦm, Sharynne McLeod
Jan 22, 2015·Proceedings of the National Academy of Sciences of the United States of America·Caleb EverettSeán G Roberts
Feb 19, 2013·Auris, Nasus, Larynx·Rudolf ReiterSibylle Brosch
Mar 23, 2012·Journal of Communication Disorders·Oya TopbaşKenneth O St Louis
May 10, 2011·Journal of Voice : Official Journal of the Voice Foundation·Yi-Qing ZhengShao-Qi Rao
Jan 5, 2016·Journal of Voice : Official Journal of the Voice Foundation·Iris MeerschmanKristiane Van Lierde
May 13, 2008·Journal of Voice : Official Journal of the Voice Foundation·Duong Duy Nguyen, Dianna T Kenny
May 6, 2008·Journal of Voice : Official Journal of the Voice Foundation·Duong Duy Nguyen, Dianna T Kenny
Jun 23, 2015·Journal of Voice : Official Journal of the Voice Foundation·Feng-Chuan LinYu-Ching Kuo
Aug 10, 2019·Journal of Voice : Official Journal of the Voice Foundation·Farhad AlizadehDavood Sobhani-Rad

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