Vocal Load of University Professors: Preliminary Results

Carga vocal de los profesores universitarios: resultados preliminares

Published 2024-01-29 — Updated on 2024-02-03

Open | Download
HTML Icon XML Icon PDF Icon Flip Icon
Issue
Vol. 6 No. 1 (2024)
Section
Research Article
How to Cite
1.
Vocal Load of University Professors: Preliminary Results. Rev. Investig. Innov. Cienc. Salud [Internet]. 2024 Feb. 3 [cited 2024 Nov. 24];6(1):73-97. Available from: https://riics.info/index.php/RCMC/article/view/241
DOI

https://doi.org/10.46634/riics.241
Dimensions
PlumX
license
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Cristiane Lemos Carvalho de Oliveira
Graduate Program in Health, Environment and Work; School of Medicine; Federal University of Bahia; Salvador; Bahia; Brazil
    https://orcid.org/0000-0002-8179-5241
    Denise Nunes Viola
    Department of Statistics; Institute of Mathematics and Statistics; Federal University of Bahia; Salvador; Bahia; Brazil
      https://orcid.org/0000-0001-8458-9489
      Tarciane Machado Miranda
      Speech-Language-Pathology-Hearing Sciences Department; Multidisciplinary Institute of Rehabilitation and Health; Federal University of Bahia; Salvador; Bahia; Brazil
        https://orcid.org/0000-0003-2795-7809
        Marcelo Santos de Souza
        Speech-Language-Pathology-Hearing Sciences Department; Multidisciplinary Institute of Rehabilitation and Health; Federal University of Bahia; Salvador; Bahia; Brazil
          https://orcid.org/0000-0002-9122-5883
          Maria Lúcia Vaz Masson
          Graduate Program in Health, Environment and Work; School of Medicine; Federal University of Bahia; Salvador; Bahia; Brazil. / Speech-Language-Pathology-Hearing Sciences Department; Multidisciplinary Institute of Rehabilitation and Health; Federal University of Bahia; Salvador; Bahia; Brazil.
            https://orcid.org/0000-0003-0733-1753
            Show authors biography

            Purpose. To describe the acoustic characteristics of a classroom, voice quality, fatigue, and vocal load of university professors.

            Methods. Exploratory, observational, longitudinal, and descriptive study with a single group of participants, including vocal monitoring data over two weeks. Acoustic characterization of the classroom, perceptual-auditory evaluation, and acoustic analysis of voice samples were conducted before and after classes. Vocal dosimetry was performed during classes, and the Vocal Fatigue Index (VFI) was assessed at the beginning of each week. Descriptive analysis of the findings was conducted, and randomization test was performed to verify the internal reliability of the judge.

            Results. All participants reported speaking loudly in the classroom, with the majority reporting vocal changes in the past six months, and only one participant reported a current vocal change. The classroom had acoustical measures and estimations that deviated from established standards. The professors used high vocal intensities during classes. After the classes, an increase in the absolute values of the aggregated data for CAPE-V, jitter, and fundamental frequency was found, varying within the range of normality. Furthermore, there was an observed increase in both post-lesson intensity and VFI when comparing the two-week period.

            Conclusions. Vocal intensities and VFI were possibly impacted by the acoustics of the classroom. The increase in average VFI between the weeks may be attributed to a cumulative fatigue sensation. Further research with a larger number of participants and in acoustically conditioned classrooms is suggested in order to evaluate collective intervention proposals aimed at reducing the vocal load on teachers.

            Article visits 312 | PDF visits 143

            1. Roy N, Merril RM, Thibeault S, Parsa RA, Gray SD, Smith EM. Prevalence of voice disorders in teachers and the general population. J. Speech Lang. Hear. Res. 2004;47(2). doi: https://doi.org/10.1044/1092-4388(2004/023)
            2. Behlau M, Zambon F, Guerrieri AC, Roy N. Epidemiology of voice disorders in teachers and nonteachers in Brazil: prevalence and adverse effects. J Voice. 2012;26(5):665.e9-18. doi: https://doi.org/10.1016/j.jvoice.2011.09.010
            3. Brasil. Secretaria de Vigilância em Saúde, Departamento de Vigilância em Saúde Ambiental e Saúde do Trabalhador. Distúrbio de Voz Relacionado ao Trabalho – DVRT. Brasília, DF: Ministério da Saúde; 2018. Available from: http://bvsms.saude.gov.br/bvs/publicacoes/disturbio_voz_relacionado_trabalho_dvrt.pdf
            4. Masson MLV, Ferrite S, Pereira LMA, Ferreira LP, Araujo TM. Seeking the recognition of voice disorder as work-related disease: historical-political movement. Cien Saude Colet. (online). 2019;24(3):805-16. doi: https://doi.org/10.1590/1413-81232018243.00502017
            5. Cantor Cutiva LC, Vogel I, Burdof A. Voice disorders in teachers and their associations with work-related factors: a systematic review. J. Commun. Disord., Amsterdam. 2013;46(2):143-55. doi: https://doi.org/10.1016/j.jcomdis.2013.01.001
            6. Cantor Cutiva LC, Burdof A. Effects of noise and acoustics in schools on vocal health in teachers. Noise Health. 2015;17(74):17–22. Available from: https://journals.lww.com/nohe/fulltext/2015/17740/effects_of_noise_and_acoustics_in_schools_on_vocal.3.aspx
            7. Jesus MTA, Ferrite S, Araújo TM, Masson MLV. Work-related voice disorder: an integrative review. Rev. Bras. Saúde Ocup. [online]. 2020;45e26. doi: https://doi.org/10.1590/2317-6369000040218
            8. Nudelman CJ, Bottalico P, Cantor-Cutiva LC. The effects of room acoustics on self-reported vocal fatigue: a systematic review. J Voice (impress). 2023. doi: https://doi.org/10.1016/j.jvoice.2022.12.024
            9. Hunter EJ, Cantor-Cutiva LC, van Leer E, van Mersbergen M, Nanjundeswaran CD, Bottalico P, Sandage MJ, Whitling S. Toward a consensus description of vocal effort, vocal load, vocal loading, and vocal fatigue. J. Speech Lang. Hear. Res. 2020;63(2):509-32. doi: https://doi.org/10.1044/2019_JSLHR-19-00057
            10. Assad JP, Magalhães MC, Santos JN, Gama ACC. Vocal dose: an integrative literature review. Rev. CEFAC. 2017;19(3):429-38. doi: https://doi.org/10.1590/1982-021620171932617
            11. Moghtader M, Soltani M, Mehravar M, Yazdi MJ, Dastoorpoor M, Moradi N. The relationship between vocal fatigue index and voice handicap index in university professors with and without voice complaint. J Voice. 2020;34(5):809.e1-809.e5. doi: https://doi.org/10.1016/j.jvoice.2019.01.010
            12. Araújo TM, Pinho PS, Masson MLV. Teachers’ work and health in Brazil: thoughts on the history of research, strides, and challenges. Cad Saúde Pública (online). 2019;35(Suppl 1). doi: https://doi.org/10.1590/0102-311X00087318
            13. Medeiros YPO, Nascimento CMB, Gomes AOC, Lira ZS, Araújo AN. The use of voice in higher education: what the professors have to say? Rev CEFAC (online). 2020; 22(4):e13519, 2020. doi: https://doi.org/10.1590/1982-0216/202022413519
            14. Servilha EAM, Costa ATF. Knowledge about voice and the importance of voice as an education resource in the perspective of university professors. Rev CEFAC [online]. 2015;17(1):13–26. doi: https://doi.org/10.1590/1982-0216201514813
            15. Azari S, Aghaz A, Maarefvand M, Ghelichi L, Pashazadeh F, Shavaki YA. The prevalence of voice disorders and the related factors in university professors: a systematic review and meta-analysis. J Voice (impress). 2022. doi: https://doi.org/10.1016/j.jvoice.2022.02.017
            16. Korn GP, Pontes AAL, Abranches D, Pontes PAL. Hoarseness and risk factors in university teachers. J Voice. 2015;29(4):518.e21-518.e28. doi: https://doi.org/10.1016/j.jvoice.2014.09.008
            17. Gomes NR, Teixeira LC, Medeiros AM. Vocal symptoms in university professors: their association with vocal resources and with work environment. J Voice. 2020;34(3):352-357. doi: https://doi.org/10.1016/j.jvoice.2018.10.010
            18. Kyriakou K, Petinou K, Phinikettos I. Risk factors for voice disorders in university professors in Cyprus. J Voice. 2018;32(5):643.e1-643.e9. doi: https://doi.org/10.1016/j.jvoice.2017.07.005
            19. Mehta DD, Van Stan JH, Zañartu M, Ghassemi M, Guttag JV, Espinoza VM, et al. Using Ambulatory Voice Monitoring to Investigate Common Voice Disorders: Research Update. Front Bioeng Biotechnol [Internet]. 2015 Oct 16;3:155. doi: https://doi.org/10.3389/fbioe.2015.00155
            20. Nudelman CJ, Ortiz AJ, Fox AB, Mehta DD, Hillman RE, Van Stan JH. Daily Phonotrauma Index: objective indicator of large differences in self-reported vocal status in the daily life of females with phonotraumatic vocal hyperfunction. Am J Speech Lang Pathol. 2022;31(3):1412-23. doi: https://doi.org/10.1044/2022_AJSLP-21-00285
            21. Hunter EJ, Titze IR. Variations in intensity, fundamental frequency and voicing for teachers in occupational versus non-occupational settings. J Speech, Lang.Hear. Res. 2010;53(4):862-75. doi: https://doi.org/10.1044/1092-4388(2009/09-0040)
            22. Behlau M. (Org.). Voz: o livro do especialista. Volume 1. Ed. Revinter, 2001. p. 62-64, 85-245.
            23. Ghirardi ACA, Ferreira LP, Giannini SPP, Latorre MRDO. Screening Index for Voice Disorder (SIVD): development and validation. J Voice. 2013;27(2):195-200. doi: https://doi.org/10.1016/j.jvoice.2012.11.004
            24. Behlau M, Rocha B, Englert M, Madazio G. Validation of the Brazilian Portuguese CAPE-V Instrument—Br CAPE-V for auditory-perceptual analysis. J Voice. 2022;36(4):586.e15–586.e20. doi: https://doi.org/10.1016/j.jvoice.2020.07.007
            25. Yamasaki R, Madazio G, Leão SHS, Padovani M, Azevedo R, Behlau M. Auditory-perceptual evaluation of normal and dysphonic voices using the Voice Deviation Scale. J Voice. 2017;31(1):67-71. doi: https://doi.org/10.1016/j.jvoice.2016.01.004
            26. Manly BFJ. Randomization, bootstrap and Monte Carlo methods in biology: texts in statistical science. Flórida: Chapman and Hall/CRC; 2006. 480 p.
            27. Orlikoff RF, Kahane JC. Influence of mean sound pressure level on jitter and shimmer measures. J Voice. 1991;5:113-119. doi: https://doi.org/10.1016/S0892-1997(05)80175-4
            28. Zambon F, Moreti F, Ribeiro VV, Nanjundeswaran C, Behlau M. Vocal Fatigue Index: validation and cut-off values of the brazilian version. J Voice. 2022;36(3):434.e17-434.e24. doi: https://doi.org/10.1016/j.jvoice.2020.06.018
            29. Banks RE, Bottalico P, Hunter EJ. The effect of classroom capacity on vocal fatigue as quantified by the Vocal Fatigue Index. Folia Phoniatr. Logop. 2018;69(3):85-93. doi: https://doi.org/10.1159/000484558
            30. Bottalico P, Astolfi A, Hunter EJ. Teachers’ voicing and silence periods during continuous speech in classrooms with different reverberation times. J. Acoust. Soc. Am. 2017;141(1):26–31. doi: https://doi.org/10.1121/1.4973312
            31. Berglund, B.; Lindvall, T.; Schwela, D.H.; & World Health Organization. Occupational and environmental Health Team. Guidelines for community noise. Geneva: World Health Organization; 1999.
            32. Calosso G, Puglisi GE, Astolfi A, Castellana A, Carullo A, Pellerey F. A one-school year longitudinal study of secondary school teachers' voice parameters and the influence of classroom acoustics. J. Acoust. Soc. Am. 2017;142(2):1055. doi: https://doi.org/10.1121/1.4998707
            33. Yiu E. M.; Yip P. P. Effect of noise on vocal loudness and pitch in natural environments: An accelerometer (Ambulatory Phonation Monitor) study. J Voice. 2016;30(4):389–93. doi: https://doi.org/10.1016/j.jvoice.2015.05.016
            34. Bottalico P, Passione II, Graetzer S, Hunter EJ. Evaluation of the starting point of the Lombard Effect. Acta Acustica. 2017;103(1):169–72. doi: https://doi.org/10.3813/AAA.919043
            35. Bottalico P, Cantor Cutiva LC, Hunter EJ. Vocal fatigue in virtual acoustics scenarios. J. Acoust. Soc. Am. 2017;141(5):3541. doi: https://doi.org/10.1121/1.4987484
            36. Titze IR, Hunter EJ. Comparison of vocal vibration-dose measures for potential-damage risk criteria. J Speech Lang. Hear. Res. 2015;58(5):1425–1439. doi: https://doi.org/10.1044/2015_JSLHR-S-13-0128
            37. Atará-Piraquive ÁP, Cantor-Cutiva LC. Gender differences in vocal doses among occupational voice users: a systematic review of literature and meta-analysis. Logoped Phoniatr Vocol. 2022;47(1):63-72. doi: https://doi.org/10.1080/14015439.2021.1873415
            38. Ahlander VL, Garcia DP, Whitling S, Rydell R, Löfqvist A. Teachers’ voice use in teaching environments: a field study using Ambulatory Phonation Monitor. J Voice. 2014;28(6):841.e5-15. doi: https://doi.org/doi:10.1016/j.jvoice.2014.03.006
            39. Titze IR, Svec JG, Popolo PS. Vocal dose measures: quantifying accumulated vibration exposure in vocal fold tissues. J Speech Lang. Hear. Res. 2003;46(4):919–932. doi: https://doi.org/10.1044/1092-4388(2003/072)
            40. Nacci, A. et al. The use and role of the Ambulatory Phonation Monitor (APM) in voice assessment. Acta Otorhinolaryngol Ital. 2013;33(1):49-55. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3631805/
            41. Lopes LW, Cavalcante DP, Costa PO. Severity of voice disorders: integration of perceptual and acoustic data in dysphonic patients. CoDAS. 2014;26(5):382-8. doi: https://doi.org/10.1590/2317-1782/20142013033
            42. Laukkanen AM, Kankare E. Vocal loading-related changes in male teachers' voices investigated before and after a working day. Folia Phoniatr. Logop. 2006;58(6):229–239. doi: https://doi.org/10.1159/000093180
            43. Laukkanen AM, Ilomäki I, Leppänen K, Vilkman E. Acoustic measures and self-reports of vocal fatigue by female teachers. J Voice. 2008;22(3):283-9. doi: https://doi.org/10.1016/j.jvoice.2006.10.001
            Publish with RIICS

            Scimago

            Most read in the last 30 days

            Sistema OJS 3.4.0.7 - Metabiblioteca |