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Analysis of possible factors of vocal interference during the teaching activity.

Abstract To measure the risk of dysphonia in teachers, as well as investigate whether the perceptual-auditory and acoustic aspects of the voice of teachers in situations of silence and noise, the signal-to-noise ratio, and the noise levels in the classroom are associated with the presence of dysphonia.
PMID
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Authors

Mayor MeshTerms

School Teachers

Speech Production Measurement

Keywords
Journal Title revista de saude publica
Publication Year Start




PMID- 29236878
OWN - NLM
STAT- MEDLINE
DCOM- 20171218
LR  - 20171220
IS  - 1518-8787 (Electronic)
IS  - 0034-8910 (Linking)
VI  - 51
DP  - 2017 Dec 11
TI  - Analysis of possible factors of vocal interference during the teaching activity.
PG  - 124
LID - S0034-89102017000100305 [pii]
LID - 10.11606/S1518-8787.2017051000092 [doi]
AB  - OBJECTIVE: To measure the risk of dysphonia in teachers, as well as investigate
      whether the perceptual-auditory and acoustic aspects of the voice of teachers in 
      situations of silence and noise, the signal-to-noise ratio, and the noise levels 
      in the classroom are associated with the presence of dysphonia. METHODS: This is 
      an observational cross-sectional research with 23 primary and secondary school
      teachers from a private school in the municipality of Sao Paulo, Brazil, divided 
      into the groups without dysphonia and with dysphonia. We performed the following 
      procedures: general Dysphonia Risk Screening Protocol (General-DRSP) and
      complementary to speaking voice - teacher (Specific-DRSP), voice recording during
      class and in an individual situation in a silent room, and measurement of the
      signal-to-noise ratio and noise levels of classrooms. RESULTS: We have found
      differences between groups regarding physical activity (General-DRSP) and
      particularities of the profession (Specific-DRSP), as well as in all aspects of
      the perceptual-auditory vocal analysis. We have found signs of voice wear in the 
      group without dysphonia. Regarding the vocal resources in the situations of noise
      and silence, we have identified a difference for the production of abrupt vocal
      attack and the tendency of a more precise speech in the situation of noise. Both 
      the signal-to-noise ratio and the room noise levels during class were high in
      both groups. CONCLUSIONS: Teachers in both groups are at high risk for developing
      dysphonia and have negative vocal signals to a greater or lesser extent.
      Signal-to-noise ratio was inadequate in most classrooms, considering the
      standards for both children with normal hearing and with hearing loss, as well as
      equivalent noise levels.
FAU - Silva, Barbara Gabriela
AU  - Silva BG
AD  - Universidade de Sao Paulo. Faculdade de Medicina. Departamento de Fisioterapia,
      Fonoaudiologia e Terapia Ocupacional. Sao Paulo, SP, Brasil.
FAU - Chammas, Tiago Visacre
AU  - Chammas TV
AD  - Universidade de Sao Paulo. Faculdade de Medicina. Departamento de Fisioterapia,
      Fonoaudiologia e Terapia Ocupacional. Sao Paulo, SP, Brasil.
FAU - Zenari, Marcia Simoes
AU  - Zenari MS
AD  - Universidade de Sao Paulo. Faculdade de Medicina. Departamento de Fisioterapia,
      Fonoaudiologia e Terapia Ocupacional. Sao Paulo, SP, Brasil.
FAU - Moreira, Renata Rodrigues
AU  - Moreira RR
AD  - Universidade de Sao Paulo. Hospital Universitario. Sao Paulo, SP, Brasil.
FAU - Samelli, Alessandra Giannella
AU  - Samelli AG
AD  - Universidade de Sao Paulo. Faculdade de Medicina. Departamento de Fisioterapia,
      Fonoaudiologia e Terapia Ocupacional. Sao Paulo, SP, Brasil.
FAU - Nemr, Katia
AU  - Nemr K
AD  - Universidade de Sao Paulo. Faculdade de Medicina. Departamento de Fisioterapia,
      Fonoaudiologia e Terapia Ocupacional. Sao Paulo, SP, Brasil.
LA  - eng
LA  - por
PT  - Journal Article
PT  - Observational Study
DEP - 20171211
PL  - Brazil
TA  - Rev Saude Publica
JT  - Revista de saude publica
JID - 0135043
SB  - IM
MH  - Adult
MH  - Analysis of Variance
MH  - Cross-Sectional Studies
MH  - Dysphonia/diagnosis/*etiology
MH  - Female
MH  - Humans
MH  - Noise, Occupational/*adverse effects
MH  - Occupational Diseases/*etiology
MH  - Risk Assessment
MH  - *School Teachers
MH  - *Speech Production Measurement
MH  - Teaching/statistics & numerical data
PMC - PMC5718102
EDAT- 2017/12/14 06:00
MHDA- 2017/12/19 06:00
CRDT- 2017/12/14 06:00
PHST- 2016/06/22 00:00 [received]
PHST- 2017/01/24 00:00 [accepted]
PHST- 2017/12/14 06:00 [entrez]
PHST- 2017/12/14 06:00 [pubmed]
PHST- 2017/12/19 06:00 [medline]
AID - S0034-89102017000100305 [pii]
AID - 10.11606/S1518-8787.2017051000092 [doi]
PST - epublish
SO  - Rev Saude Publica. 2017 Dec 11;51:124. doi: 10.11606/S1518-8787.2017051000092.