Discriminant Capacity of Acoustic, Perceptual, and Vocal Self: The Effects of Vocal Demands

Gama, Ana Cristina Côrtes; Camargo, Zuleica; Santos, Marco Aurélio Rocha; Rusilo, Luiz Carlos

doi:10.1016/j.jvoice.2014.06.012

Cited by 8 publications

(3 citation statements)

References 27 publications

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“…Research shows that the F0 and intensity among teachers do not differ, even in the presence of dysphonia (4) ; however, with the continuous use of the voice over time, there is an increase in F0 and intensity (4,10) . This study examined the F0 and intensity for a period of 40 minutes, which suggests that the increase in these parameters is dependent on a more prolonged time of use, which is consistent with the literature (11) . Dysphonic teachers had higher phonation time values and cycle dose, suggesting a greater exposure of the tissue of the VF to consecutive trauma (8) .…”

Section: Discussionsupporting

confidence: 88%

Dose vocal em professores: correlação com a presença de disfonia

Gama

Santos

Pedra

et al. 2016

CoDAS

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Teachers are professionals with high prevalence of dysphonia, whose main risk factors are the large work hours in classrooms with the presence of background noise. The purpose of the study was to calculate the phonation time and the cycle dose of teachers with dysphonia and teachers without voice disorders during the class. There were two groups analyzed: five teachers with functional dysphonia were the first group and five teachers without voice disorders were the second group. For the data was used the VoxLog® dosimeter and the parameters were: intensity; fundamental frequency; phonation time and cycle dose. The statistical analysis used ANOVA, Student's T-test, and Kruskal-Wallis test. Dysphonic teachers showed major values of phonation time and cycle dose compared with teachers without voice disorders. The dysphonia is related to extended period of speech time and greater exposure of the tissue of the vocal fold to phonotrauma.

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Section: Discussionsupporting

confidence: 88%

Dose vocal em professores: correlação com a presença de disfonia

Gama

Santos

Pedra

et al. 2016

CoDAS

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“…Some authors have reported that voice symptoms returned to normal within 6 months [7, 21]. Even considering vocal cord palsy, many studies have considered 12 months a reasonable spontaneous recovery interval [24–26]. Our study excluded patients with vocal cord palsy; therefore, the follow‐up period of 12 months was sufficient to evaluate “long‐lasting” symptoms.…”

Section: Discussionmentioning

confidence: 99%

Long‐Lasting Voice‐Related Symptoms in Patients Without Vocal Cord Palsy After Thyroidectomy

et al. 2017

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“…The literature suggests an association between vocal load, work performance, and work environment. Acoustics, background noise, humidity, and social environment may increase vocal SPLs [53, 73], as well as vocal effort associated with occupational voice use [41]. These factors affect the fundamental frequency and vibratory properties of the vocal folds, which implies a further increase in impact stress [34, 55, 54].…”

Section: Resultsmentioning

confidence: 99%

Systematic Review of Literature on Vocal Demand Response: Understanding Physiology, Measurements, and Associated Factors

Mora¹,

Cutiva²,

Hunter³

et al. 2023

Folia Phoniatr Logop

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Purpose: Considering the conceptual migration from vocal load and vocal loading to vocal demand and vocal demand response, this review of literature aims to identify physiological explanations, reported measurements, and associated factors (vocal demands) reported in the literature when considering the phonatory response to a vocal demand. Methods: A systematic review of literature, following the PRISMA Statement, was conducted using Web of Science, PubMed, Scopus, and Science Direct. Data were analyzed and presented in two parts. First, a bibliometric analysis, co-occurrence analysis, and content analysis were performed. Three criteria got article inclusion were defined: (1) written in English, Spanish, and Portuguese, (2) published between 2009 and 2021, and (3) focused on vocal load and loading, vocal demand response, and voice assessment parameters. A total of 54 publications met the criteria and were included in this review. The second part included a conceptual framework based on the content analysis of three aspects of vocal demand response: (1) physiological explanations, (2) reported measurements, and (3) vocal demands. Results and Conclusion: As would be expected since vocal demand response is a relatively new term and not yet commonly used in literature when discussing way that the speakers respond to communicative scenarios, most of the studies reviewed (both historical and recent) still use the term of vocal load and vocal loading. Although there is a broad variety of literature discussing a wide range of vocal demands and voice parameters used to characterize the vocal demand response, results show that there is consistency across the studies. While vocal demand response is unique and intrinsic to the talker, associated factors that contribute to this response include both internal talker and external talker factors. Internal factors include muscle stiffness, viscosity in the phonatory system, vocal fold tissue damage, elevated sound pressure levels during occupational voice demands, extended periods of voice use, sub-optimal body posture, difficulties in breathing technique, and sleep disturbances. Associated external factors include the working environment (noise, acoustics, temperature, humidity). In conclusion, although vocal demand response is intrinsic to the speaker, the speaker’s response is affected by external vocal demands. However, due to the wide methods to evaluate vocal demand response, it has been difficult to establish its contribution to voice disorders in the general population, and specifically, among occupational voice users. This literature review identified commonly reported parameters and factors that may help clinicians and researchers to define vocal demand response.

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Discriminant Capacity of Acoustic, Perceptual, and Vocal Self: The Effects of Vocal Demands

Cited by 8 publications

References 27 publications

Dose vocal em professores: correlação com a presença de disfonia

Dose vocal em professores: correlação com a presença de disfonia

Long‐Lasting Voice‐Related Symptoms in Patients Without Vocal Cord Palsy After Thyroidectomy

Systematic Review of Literature on Vocal Demand Response: Understanding Physiology, Measurements, and Associated Factors

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