Comparison of respiratory competency based on MPT and S/Z ratio in teachers with/without voice disorders risk based on SIVD

Document Type : Original article

Authors

1 PhD Candidate of Speech Therapy, Department of Speech and Language Pathology, Iran University of Medical Sciences, Tehran, Iran

2 Department of Speech and Language Pathology, Shiraz University of Medical Sciences, Shiraz, Iran

Abstract

Background and aim: The respiratory system is considered as a source of energy for normal vibration of vocal folds with no extra forces on external and internal laryngeal muscles. This system is specifically important in professional voice users. With regard to the high incidence of voice problems among teachers, as a significant group of professional voice users, the present study was conducted to investigate the respiratory competency using MPT and s/z Ratio criterion in teachers with and without voice problems risks classified based on their scores on Screening Index for Voice Sisorder (SIVD).
Materials and Methods: The current cross-sectional study was carried out on 100 elementary school teachers. The participants first completed the SIVD questionnaire, and then the MPT and the s/z Ratio were calculated for each teacher. Data analysis was run using SPSS (v. 18).
Results: No significant difference was observed between means of MPT and s/z Ratio in male participants in the two groups. However, the difference between means of MPT in female participants was found to be significant (p= 0.01).
Conclusion: The results suggest that although respiratory competency was lower than normal in all the teachers, it cannot solely be the cause of developing the risk of voice problems.

Keywords

Main Subjects


  1. Sataloff RT. Clinical assessment of voice: Plural Publishing; 2005.##
  2. Cantor Cutiva LC, Vogel I, Burdorf A. Voice disorders in teachers and their associations with work-related factors: A systematic review. Journal of Communication Disorders. 2013;46(2):143-55.##
  3. Preciado-López J, Pérez-Fernández C, Calzada-Uriondo M, Preciado-Ruiz P. Epidemiological study of voice disorders among teaching professionals of La Rioja, Spain. Journal of voice. 2008;22(4):489-508.##
  4. Ohlsson A-C, Andersson EM, Södersten M, Simberg S, Barregård L. Prevalence of voice symptoms and risk factors in teacher students. Journal of Voice. 2012;26(5):629-34.##
  5. Martins RHG, Pereira ERBN, Hidalgo CB, Tavares ELM. Voice Disorders in Teachers. A Review. Journal of Voice. 2014;28(6):716-24.##
  6. Assunção A, Bassi I, de Medeiros A, de Souza Rodrigues C, Gama A. Occupational and individual risk factors for dysphonia in teachers. Occupational medicine. 2012;62(7):553-9.##
  7. Chen SH, Chiang S-C, Chung Y-M, Hsiao L-C, Hsiao T-Y. Risk factors and effects of voice problems for teachers. Journal of Voice. 2010;24(2):183-92.##
  8. Awan SN, Novaleski CK, Yingling JR. Test-retest reliability for aerodynamic measures of voice. Journal of Voice. 2013;27(6):674-84.##
  9. Solomon NP, Helou LB, Henry LR, Howard RS, Coppit G, Shaha AR, et al. Utility of the voice handicap index as an indicator of postthyroidectomy voice dysfunction. Journal of Voice. 2013;27(3):348-54.##
  10. Speyer R, Bogaardt HC, Passos VL, Roodenburg NP, Zumach A, Heijnen MA, et al. Maximum phonation time: variability and reliability. Journal of Voice. 2010;24(3):281-4.##
  11. Speyer R. Effects of voice therapy: a systematic review. Journal of Voice. 2008;22(5):565-80.##
  12. Ma EP-M, Yiu EM-L. Multiparametric evaluation of dysphonic severity. Journal of Voice. 2006;20(3):380-90.##
  13. Van der Meer G, Ferreira Y, Loock JW. The S/Z ratio: A simple and reliable clinical method of evaluating laryngeal function in patients after intubation. Journal of critical care. 2010;25(3):489-92.##
  14. Boone DR, McFarlane SC, Von Berg SL, Zraick RI. The voice and voice therapy. 2005.##
  15. Casper JK, Leonard R. Understanding voice problems: A physiological perspective for diagnosis and treatment: Lippincott Williams & Wilkins; 2006.##
  16. Barsties B, De Bodt M. Assessment of voice quality: Current state-of-the-art. Auris Nasus Larynx. 2014.##
  17. Lowell SY, Barkmeier-Kraemer JM, Hoit JD, Story BH. Respiratory and laryngeal function during spontaneous speaking in teachers with voice disorders. Journal of speech, language, and hearing research. 2008;51(2):333-49.##
  18. Pereira ERBN, Tavares ELM, Martins RHG. Voice Disorders in Teachers: Clinical, Videolaryngoscopical, and Vocal Aspects. Journal of Voice. 2015;29(5):564-71.##
  19. Mohseni R, Sandoughdar N. Survey of Voice Acoustic Parameters in Iranian Female Teachers. Journal of Voice. 2015.##
  20. Timmermans B, De Bodt MS, Wuyts FL, Van de Heyning PH. Training outcome in future professional voice users after 18 months of voice training. Folia Phoniatrica et Logopaedica. 2004;56(2):120-9.##
  21. Timmermans B, De Bodt M, Wuyts F, Van de Heyning P. Voice quality change in future professional voice users after 9 months of voice training. European Archives of Oto-Rhino-Laryngology and Head & Neck. 2004;261(1):1-5.##
  22. Roy N, Gray SD, Simon M, Dove H, Corbin-Lewis K, Stemple JC. An Evaluation of the Effects of Two Treatment Approaches for Teachers With Voice DisordersA Prospective Randomized Clinical Trial. Journal of Speech, Language, and Hearing Research. 2001;44(2):286-96.##
  23. Hackworth RS. The effect of vocal hygiene and behavior modification instruction on the self-reported vocal health habits of public school music teachers. International Journal of Music Education. 2007;25(1):20-8.##
  24. Bovo R, Galceran M, Petruccelli J, Hatzopoulos S. Vocal problems among teachers: evaluation of a preventive voice program. Journal of Voice. 2007;21(6):705-22.##
  25. Maslan J, Leng X, Rees C, Blalock D, Butler SG. Maximum phonation time in healthy older adults. Journal of Voice. 2011;25(6):709-13.##
  26. Ozra Aghadoost YAS, Negin Moradi, Shohreh Jalai. Comparing acoustic characteristics of voice in female teachers with and without voice complaint working at elementary schools of Tehran, Iran. research in rehabilitation sciences. 2013;8(7).##
  27. Tavares EL, Martins RH. Vocal evaluation in teachers with or without symptoms. Journal of Voice. 2007;21(4):407-14.##
  28. Sataloff RT. Voice science: Plural Pub Incorporated; 2005.##
Volume 5, Issue 3
September and October 2016
Pages 119-126
  • Receive Date: 15 December 2015
  • Revise Date: 15 February 2016
  • Accept Date: 16 February 2016
  • First Publish Date: 22 September 2016