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      Self-perception of the Immediate Impact on the Voice of Gospel Singers after a one-hour Presentation

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          ABSTRACT

          Purpose

          To investigate the immediate impact on the voice of gospel singers with and without vocal complaints after a one-hour individual presentation.

          Methods

          Application of an online questionnaire that addressed the following aspects: 1 - Sociodemographic data; 2 – Self-assessment of the ability to sing using the Evaluation of the Ability to Sing Easily (EASE-BR) protocol; 3 - Self-assessment of vocal fatigue symptoms using the Vocal Fatigue Index (VFI) protocol; and 4 - Self-assessment of voice handicap using the Voice Handicap Index 10 (VHI-10) protocol. Participants were divided into two groups: Group with Vocal Complaint (WVC) and Group with no Vocal Complaint (WnVC) based on the total score of the IDV-10. Data underwent descriptive and inferential statistical analysis with a significance level of 5%.

          Results

          The study included 43 gospel singers with a median age of 34 years: 32 were in the WnVC group and 11 were in the WVC group. The WVC group reported hoarseness and experienced more difficulty while singing in the EASE, resulting in higher scores in both the VHI-10 and VFI protocols. A positive correlation was observed between singing difficulty and vocal handicap due to fatigue in amateur gospel singers, with this correlation being stronger within the WnVC group.

          Conclusion

          After one hour of performance, singers with vocal complaints exhibited higher rates of vocal fatigue, vocal disadvantage, and greater difficulty in singing. Singers without complaints may have their ability to sing impaired by vocal fatigue. Variations in singing ability and vocal handicaps in amateur gospel singers may be directly related to vocal fatigue.

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          Most cited references30

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          Statistics corner: A guide to appropriate use of correlation coefficient in medical research.

          M M Mukaka (2012)
          Correlation is a statistical method used to assess a possible linear association between two continuous variables. It is simple both to calculate and to interpret. However, misuse of correlation is so common among researchers that some statisticians have wished that the method had never been devised at all. The aim of this article is to provide a guide to appropriate use of correlation in medical research and to highlight some misuse. Examples of the applications of the correlation coefficient have been provided using data from statistical simulations as well as real data. Rule of thumb for interpreting size of a correlation coefficient has been provided.
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            • Record: found
            • Abstract: found
            • Article: not found

            Vocal Fatigue Index (VFI): Development and Validation.

            To develop a psychometrically sound self-report questionnaire, the Vocal Fatigue Index (VFI), to help identify individuals with vocal fatigue (VF) and characterize their complaints.
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              • Record: found
              • Abstract: found
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              Physiologic and acoustic differences between male and female voices.

              I. Titze (1989)
              Comparison is drawn between male and female larynges on the basis of overall size, vocal fold membranous length, elastic properties of tissue, and prephonatory glottal shape. Two scale factors are proposed that are useful for explaining differences in fundamental frequency, sound power, mean airflow, and glottal efficiency. Fundamental frequency is scaled primarily according to the membranous length of the vocal folds (scale factor of 1.6), whereas mean airflow, sound power, glottal efficiency, and amplitude of vibration include another scale factor (1.2) that relates to overall larynx size. Some explanations are given for observed sex differences in glottographic waveforms. In particular, the simulated (computer-modeled) vocal fold contact area is used to infer male-female differences in the shape of the glottis. The female glottis appears to converge more linearly (from bottom to top) than the male glottis, primarily because of medial surface bulging of the male vocal folds.
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                Author and article information

                Contributors
                Role: project developmentRole: data collectionRole: writing of the manuscript
                Role: project developmentRole: data analysisRole: writing of the manuscript
                Role: project developmentRole: data analysisRole: writing of the manuscript
                Role: guidanceRole: writing of the manuscript
                Journal
                Codas
                Codas
                codas
                CoDAS
                Sociedade Brasileira de Fonoaudiologia
                2317-1782
                20 November 2023
                2024
                : 36
                : 2
                : e20230002
                Affiliations
                [1 ] originalCentro de Estudos da Voz – CEV, São Paulo (SP), Brasil.
                [1 ] originalCentro de Estudos da Voz – CEV, São Paulo (SP), Brasil.
                Author notes

                Conflict of interests: nothing to declare.

                Correspondence address: Marluce dos Santos Maia Rodrigues Rua Machado Bittencourt, 361, 10º andar, Vila Clementino, São Paulo (SP), Brasil, CEP: 04044-001. E-mail: fonomarlucemaia@ 123456gmail.com

                Conflito de interesses: nada a declarar.

                Endereço para correspondência: Marluce dos Santos Maia Rodrigues Rua Machado Bittencourt, 361, 10º andar, Vila Clementino, São Paulo (SP), Brasil, CEP: 04044-001. E-mail: fonomarlucemaia@ 123456gmail.com
                Author information
                http://orcid.org/0000-0002-7033-591X
                http://orcid.org/0000-0003-1294-8221
                http://orcid.org/0000-0002-5229-7518
                http://orcid.org/0000-0003-4663-4546
                Article
                codasAO20230002_en 00306
                10.1590/2317-1782/20232023002en
                10715635
                37991054
                18698ae6-0dc7-4d7d-a76a-4d8be9ffc28f

                This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 09 January 2023
                : 07 August 2023
                Page count
                Figures: 0, Tables: 8, Equations: 0, References: 30
                Categories
                Original Article

                voice,clinical protocols,speech language and hearing sciences,singing,voice disorders

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