PMID: 16625866Apr 22, 2006Paper

Comparative study between the level of discomfort and the acoustic reflex in workers

Pró-fono : revista de atualização científica
Francisca Magnólia Diógenes Holanda Bezerra, Maria Cecília Martinelli Iório

Abstract

Comparative study between the level of discomfort and the acoustic reflex in workers. To observe the hearing behavior, through the assessment of the contraction activity of the stapedius muscle and the level of discomfort, of individuals who are and are not exposed to occupational noise, with the aim of identifying the influence of noise in the behavior of the contraction of the stapedius muscle and in the sensibility of hearing. This study was developed at the Serviço Social da Indústria - SESI - Ce. A hundred and three adults with normal hearing, male and female, with ages varying from 18 to 45 years were divided in three groups: G1 with 41 adults exposed to noise and who used AIPE; G2 with 32 adults exposed to noise and who did not use AIPE; G3 with 30 adults who were not exposed to noise. Participants were submitted to audiologic evaluation, including the analysis of the acoustic reflex level (ARL) and discomfort level (DL) at the frequencies of 500 HZ, 1000Hz, 2000Hz, 3000Hz, 4000Hz and WN. For the statistical analysis the tests of Mann Whitney, Wilcoxon and Kruskal, with significance levels of 5%, were used. No statistically significant difference was identified for the ARL between the three groups, with mean values rangi...Continue Reading

References

Aug 25, 2000·Acta Oto-laryngologica·M L UhlesM Anch
Sep 6, 2002·International Journal of Audiology·Ajith Kumar, Animesh Barman

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