2003
DOI: 10.1590/s0034-72992003000400005
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Variação da intensidade vocal: estudo da vibração das pregas vocais em seres humanos com videoquimografia

Abstract: O aumento da resistência glótica é o principal mecanismo responsável pela elevação da intensidade vocal em baixas freqüências. Esse aumento da resistência, em situações normais, é determinado pela contração dos músculos adutores das pregas vocais que promovem o aumento da tensão e a aproximação das pregas vocais em direção à linha mediana. No entanto, essas mesmas alterações podem estar presentes em algumas doenças funcionais que envolvem a laringe, como a disfonia espasmódica em adução e a disfonia hipertônic… Show more

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Cited by 26 publications
(27 citation statements)
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“…This may corroborate the hypothesis that vocal training hinders control of intensity related to frequency 20,35,36 . Thus, in addition to investigating a specific population of choristers, this study may contribute by having compared the effect of VTTT in a population with no vocal alterations and tested the duration of vocal exercises 9 .…”
Section: Discussionsupporting
confidence: 85%
See 1 more Smart Citation
“…This may corroborate the hypothesis that vocal training hinders control of intensity related to frequency 20,35,36 . Thus, in addition to investigating a specific population of choristers, this study may contribute by having compared the effect of VTTT in a population with no vocal alterations and tested the duration of vocal exercises 9 .…”
Section: Discussionsupporting
confidence: 85%
“…This result seems to corroborate the hypothesis that exercise promotes initial phonational adjustment, allowing greater control of vocal frequency and intensity in a more comfortable emission 9 . This is because there is probably only one accommodation adjustment for emission after only one minute of exercise, meaning frequency and intensity decline initially due to a possible improvement in vocal quality 35 .…”
Section: Discussionmentioning
confidence: 99%
“…Pressão sonora e tempo máximo de fonação após a técnica de finger kazoo Carla Aparecida Cielo (1) , Letícia Fernandez Frigo (2) , Mara Keli Christmann (3) (1) . Parameters and measures related to voice production such as frequency, length of vocal emission and sound pressure may suffer fine adjustments according to the pattern of vocal fold vibration.…”
Section: Sound Pressure Level and Maximum Phonation Time After Fingermentioning
confidence: 99%
“…Parameters and measures related to voice production such as frequency, length of vocal emission and sound pressure may suffer fine adjustments according to the pattern of vocal fold vibration. Some factors such as subglottic air pressure, air flow transglottic, glottal resistance, contraction of the intrinsic muscles of the larynx, pattern of glottal adduction, vibration mass, rigidity and elasticity of the vocal folds and acoustic coupling of the cavities above and below the vocal folds operating simultaneously during phonation 1,[3][4][5][6] . Deviations of these aspects may conduce to vocal distortions and are present in several dysphonia, causing impairment in voice quality and many dysphonia are closely related to sound pressure level disorders (SPL), changing the usual loudness 1,7 .…”
Section: Sound Pressure Level and Maximum Phonation Time After Fingermentioning
confidence: 99%
“…Videokymography is a method for laryngeal assessment 8,9 conducted in real time, in which isolated movements in the horizontal line of images and mucosa wave are summed up, representing the vocal fold vibration in a specific point (simulating a section), but it is not widely used owing to cost and difficulty to conduct it 10 .…”
Section: Introductionmentioning
confidence: 99%