Effects of Vocal Loading task on Teachers’ voice: Measures of Acoustical, Aerodynamic and Self-Perceptual Vocal Parameters
Abstract
Teachers are susceptible to develop dysphonia due to heavy vocal loading. The study aimed to evaluate teachers’ voice before and after vocal loading task, at the beginning and end of the day. Subjects included 70 female (mean age:34.61 years) and 30 male teachers (mean age:36.80 years) aged 25-40 years, involved in atleast four hours of teaching per day. Based on years of teaching experience, they were categorized into four groups. Acoustic analysis for sustained phonation of vowel /a/, reading task, Maximum Phonation Duration of vowels, S/Z ratio and Vocal Fatigue index Questionnaire were assessed. Significant increase in vocal fatigue and all acoustic parameters except jitter %(P<0.001) was found. No positive association between years of teaching experience and vocal symptoms.
Keywords
Full Text:
PDFReferences
Shewell C. Voice work: art and science in changing voices. John Wiley & Sons; 2013 Jul 3.
Fujiki RB, Sivasankar MP. A review of vocal loading tasks in the voice literature. Journal of Voice. 2017 May 1;31(3):388-e33.
Mahato NB, Regmi D, Bista M, Sherpa P. Acoustic analysis of voice in school teachers. JNMA; Journal of the Nepal Medical Association. 2018 Mar 1;56(211):658-61. Rantala L, Vilkman E, Bloigu R. Voice changes during work: subjective complaints and objective measurements for female primary and secondary schoolteachers. Journal of voice. 2002 Sep 1;16(3):344-55.
Rantala L, Vilkman E, Bloigu R. Voice changes during work: subjective complaints and objective measurements for female primary and secondary schoolteachers. Journal of voice. 2002 Sep 1;16(3):344-55.
Baken RJ. Phonatory response to setp-function changes in supraglottal pressure. Laryngeal function in phonation and respiration. 1987:273-90.
Akerlund L. Phonetograms before and after exposure to noise. Scandinavian Journal of Logopedics and Phoniatrics. 1993 Jan 1;18(2-3):93-7.
Remacle A, Finck C, Roche A, Morsomme D. Vocal impact of a prolonged reading task at two intensity levels: Objective measurements and subjective self-ratings. Journal of Voice. 2012 Jul 1;26(4):e177-86.
Mathur RP, Pande K, Sahgal L, Reclaimation B. Impact of vocal loading test in primary school teachers with and without dysphonia. International Journal of Health Sciences and Research. 2016;6(2):328-34.
Boominathan P, Anitha R, Shenbagavalli M, Dinesh G. Voice characteristics and recovery patterns in Indian adult males after vocal loading. Journal of the All India Institute of Speech & Hearing. 2010 Jun 1;29(2).
Laukkanen AM, Kankare E. Vocal loading-related changes in male teachers’ voices investigated before and after a working day. Folia Phoniatrica et Logopaedica. 2006;58(4):229-39
Boersma P. Accurate short-term analysis of the fundamental frequency and the harmonics-to-noise ratio of a sampled sound. In Proceedings of the institute of phonetic sciences 1993 Mar (Vol. 17, No. 1193, pp. 97-110).
Yashodha K. Acoustic Analysis of Voice. Voice: Assessment and Management. ISHA Monograph. 2008 (pp. 52-68). Publisher. All India Institute of Speech and Hearing, Mysore.
Mohseni R, Sandoughdar N. Survey of voice acoustic parameters in Iranian female teachers. Journal of Voice. 2016 Jul 1;30(4):507-e1.
Gorham-Rowan M, Berndt A, Carter M, Morris R. The effect of a vocal loading task on vocal function before and after 24 hours of thickened liquid use. J. Speech Pathology. Ther. 2016;1:1-5.
Munier C, Kinsella R. The prevalence and impact of voice problems in primary school teachers. Occupational Medicine. 2008 Jan 1;58(1):74-6.
Menon UK, Raj M, Antony L, Soman S, Bhaskaran R. Prevalence of voice disorders in school teachers in a district in South India. Journal of Voice. 2021 Jan 1;35(1):1-8.
Chowdhury K, Dawar H. Impact of classroom determinants on psychosocial aspects of voice among school teachers of Indore, India: a preliminary survey. Indian Journal of Otolaryngology and Head & Neck Surgery. 2019 Oct;71(1):776-83.
Alva A, Machado M, Bhojwani K, Sreedharan S. Study of risk factors for development of voice disorders and its impact on the quality of life of school teachers in Mangalore, India. Journal of clinical and diagnostic research: JCDR. 2017 Jan;11(1):MC01.
Thibeault SL, Merrill RM, Roy N, Gray SD, Smith EM. Occupational risk factors associated with voice disorders among teachers. Annals of epidemiology. 2004 Nov 1;14(10):786-92.
Devadas U, Bellur R, Maruthy S. Prevalence and risk factors of voice problems among primary school teachers in India. Journal of voice. 2017 Jan 1;31(1):117-e1.
Anhaia TC, Cassol M. Association between teaching experience and voice self-assessment among professors: a cross-sectional observational study. Revista CEFAC. 2015 Jan;17:52-7.
Titze IR. Toward occupational safety criteria for vocalization. Logopedics Phoniatrics Vocology. 1999 Jan 1;24(2):49-54.
Titze IR, Lemke J, Montequin D. Populations in the US workforce who
rely on voice as a primary tool of trade: a preliminary report. Journal of voice. 1997 Sep 1;11(3):254-9.
DOI: https://doi.org/10.37591/rrjohp.v13i1.2959
Refbacks
- There are currently no refbacks.
Copyright (c) 2023 Research & Reviews: A Journal of Health Professions
This Journal archive has been shifted to: https://journals.stmjournals.com/archive/rrjohp/