Effects of Therapy With Semi-occluded Vocal Tract and Choir Training on Voice in Adult Individuals With Congenital, Isolated, Untreated Growth Hormone Deficiency

Andrade, Bruna Mateus Rocha de; Valença, Eugênia H O; Salvatori, Roberto; Souza, Anita H. O.; Oliveira-Neto, Luiz A.; Oliveira, Alaíde H.A.; Oliveira, Mario C. P.; Melo, Enaldo Vieira de; Andrade, Michelle S.; Freitas, Carolina A.; Santos, Michela P.; Custodio, Fillipe A.; Monteiro, Gisane C.; Carvalho, Susana de; Aguiar‐Oliveira, Manuel H.

doi:10.1016/j.jvoice.2018.02.018

Cited by 10 publications

(7 citation statements)

References 15 publications

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“…The literature [5][6][7]10,11,[22][23][24] has been extensively researching the effects of Lax Vox ® in dysphonic and non-dysphonic people who are not singers [5][6][7]10,22,23 , in a computer model with a voice tract simulator 6 , and non-dysphonic singers 11,24 .…”

Section: Discussionmentioning

confidence: 99%

Multidimensional voice assessment: the immediate effects of Lax Vox® in singers with voice complaints

et al. 2021

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Purpose: to multidimensionally assess the effect of the Lax Vox® vocal technique on singers with voice complaints. Methods: a comparative intrasubject study that assessed 30 singers - 13 males and 17 females, aged 18 to 55 years - who self-reported voice complaints and had voice problems symptoms. The participants were submitted to voice assessment with perceptive-auditory, acoustic, aerodynamic, and electroglottographic voice analysis, as well as laryngeal assessment with high-speed videolaryngoscopy. The participants were assessed at two moments: 1) at the beginning of the data collection; and 2) five minutes after performing the Lax Vox® vocal technique. The groups were compared with appropriate statistical tests, with a 5% significance level. Results: in the acoustic analysis, there was an increase in the fundamental frequency for males, after using the Lax Vox® vocal technique. In the aerodynamic assessment, there was an increase in the airflow mean values during vocalization, as well as in aerodynamic power after using the Lax Vox® vocal technique in both groups. Conclusion: the Lax Vox® vocal technique, in the studied singers with a complaint of dysphonia, promoted an increase in the fundamental frequency, for males. In the aerodynamic parameters, in both sexes, it promoted an increase in the airflow and aerodynamic power.

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Section: Discussionmentioning

confidence: 99%

Multidimensional voice assessment: the immediate effects of Lax Vox® in singers with voice complaints

et al. 2021

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“…We have previously shown that choir singing, coupled with voice therapy and semioccluded vocal tract exercises (SOVTE), over a 30-day period, has positive effects in the acoustic analysis of the voice of IGHD adults (19). Here, we report the effects of an art-science interaction study to verify whether these acoustic changes translate into social and auditoryperceptual effects in their voice, thus improving their quality of life related to voice.…”

Section: Introductionmentioning

confidence: 90%

“…The classification of the voices for the division of the parts of the choir was determined through an auditory-perceptual evaluation of vocalizations of the vowel/ɔ/. By considering the prepubertal vocal pattern of these individuals with IGHD, choir training started with the second voice model, part of the low voice choir, followed by the high first voice (13,19).…”

Section: Vocal Intervention: Voice Therapy With Sovte and Choral Singingmentioning

confidence: 99%

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Art and science: impact of semioccluded vocal tract exercises and choral singing on quality of life in subjects with congenital GH deficiency

Andrade¹,

Valença²,

Salvatori³

et al. 2022

Archives of Endocrinology and Metabolism

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Objectives: Currently, not much is known about the interactions between voice and growth hormone (GH). We have described large kindred with isolated GH deficiency (IGHD) due to a GHRH receptor mutation, resulting in severe short stature and high-pitched voice. These IGHD individuals have little interest in GH treatment, as they consider themselves "short long-lived people" , rather than patients. Interestingly, they report normal general quality of life, but they rate their Voice-Related Quality of Life (V-RQOL) as low. Here, we assessed the social and auditory-perceptual impacts of artisticintervention voice therapy with semioccluded vocal tract exercises (SOVTE) and choral singing, on their voices. Material and methods: Seventeen GH-naïve adult IGHD individuals were enrolled in a single-arm interventional pre-post study with 13 weekly sessions of choir singing over 90 days. Outcome measures were V-RQOL scores, self-assessment of voice, and auditory-perceptual analysis (GRBAS scale, G: grade of the severity of dysphonia; R: roughness; B: breathiness; A: asthenia; and S: strain). Results: Marked improvements in total (p = 0.0001), physical (p = 0.0002), and socioemotional (p = 0.0001) V-RQOL scores and in self-assessment of voice (p = 0.004) were found. The general grades of vocal deviation (p = 0.0001), roughness (p = 0.0001), breathiness (p = 0.0001) and strain (p = 0.0001) exhibited accentuated reductions. Conclusions: Voice therapy with semioccluded vocal tract exercises and choral training improved social impact and perceptual voice assessments in IGHD subjects and markedly improved their voice-related quality of life. This is particularly important in a setting where GH replacement therapy is not widely accepted.

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“…The SOVTE benefits not only speech but also singing, as it helps adjust effortless voice use 17 . Tube phonation has also been used by singers 4 as a vocal warm-up to make voice quality clearer and louder 18 .…”

Section: Introductionmentioning

confidence: 99%

Vocal and self-perception effects of straw phonation exercises

et al. 2021

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Purpose: to assess the acoustic and self-perceived voice changes in women with and without voice symptoms after 1, 3, 5, and 7 minutes of straw phonation exercises. Methods: a total of 30 women aged 18 to 39 years participated in the study - 17 with and 13 without voice symptoms. The participants filled in the visual analog scale on self-perceived voice discomfort. The sustained vowel /ɛ/ was recorded in maximum phonation time before (m0) and after the first, third, fifth, and seventh minute performing straw phonation exercises. The maximum phonation time was measured, and an acoustic analysis was made, encompassing the following parameters: the number of harmonics, fundamental frequency, noise, glottal-to-noise excitation ratio (GNE), jitter, and shimmer. The Friedman and Wilcoxon tests were used to compare each parameter at the different moments, and the Mann-Whitney test, to compare the groups. The 5% significance level was set for the analyses. Results: no changes were found in either the acoustic variables or the self-perception of voice comparing the moments before and after the exercises in either group. The comparison between the groups revealed that the one with voice symptoms had lower GNE and higher noise values at the second moment performing the technique. Conclusion: the straw phonation did not cause acoustic or self-perceived voice changes in women with and without voice symptoms. The comparison between the groups showed that the women with symptoms had lower GNE and higher noise values than those without symptoms, after 1 minute performing straw phonation.

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Effects of Therapy With Semi-occluded Vocal Tract and Choir Training on Voice in Adult Individuals With Congenital, Isolated, Untreated Growth Hormone Deficiency

Cited by 10 publications

References 15 publications

Multidimensional voice assessment: the immediate effects of Lax Vox® in singers with voice complaints

Multidimensional voice assessment: the immediate effects of Lax Vox® in singers with voice complaints

Art and science: impact of semioccluded vocal tract exercises and choral singing on quality of life in subjects with congenital GH deficiency

Vocal and self-perception effects of straw phonation exercises

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