Training on hearing protector insertion improves noise attenuation

To determine the efficacy of hearing protector insertion by comparing attenuation values measured by objective (MIRE) and subjective (REAT) methods in groups with and without training. The study included 80 male subjects assigned to experimental (with training) and control (without training) groups....

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Bibliographic Details
Published in:CoDAS (São Paulo) 2015-11, Vol.27 (6), p.514-519
Main Authors: Samelli, Alessandra Giannella, Rocha, Clayton Henrique, Theodósio, Patrícia, Moreira, Renata Rodrigues, Neves-Lobo, Ivone Ferreira
Format: Article
Language:English
Subjects:
Adolescent
Adult
Analysis of Variance
AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY
Auditory Threshold
Cross-Sectional Studies
Ear Protective Devices
Hearing
Hearing Loss, Noise-Induced - prevention & control
Hearing Tests
Humans
Inservice Training
Inservice Training - methods
Male
Middle Aged
Noise, Occupational - prevention & control
Noise-induced Hearing Loss
Occupational Exposure - prevention & control
Occupational Health
Program Evaluation
Reference Standards
REHABILITATION
Reproducibility of Results
Young Adult
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Summary:To determine the efficacy of hearing protector insertion by comparing attenuation values measured by objective (MIRE) and subjective (REAT) methods in groups with and without training. The study included 80 male subjects assigned to experimental (with training) and control (without training) groups. The following procedures were performed: occupational history, objective and subjective assessment of hearing protectors. Only subjects in the experimental group received training and guidance on proper hearing protector insertion. Attenuation values were significantly higher in the experimental group than in the control group at all frequencies (500, 1000, 2000, and 4000 Hz) investigated through the objective (MIRE) and subjective (REAT) methods. In addition, attenuation values in the control group were lower than those provided by the hearing protector manufacturer. Both objective and subjective attenuation tests demonstrated the efficacy of training on insertion of hearing protectors because the group that received training on proper hearing protection insertion exhibited higher attenuation values than the untrained group.
ISSN:2317-1782
2317-1782
DOI:10.1590/2317-1782/20152014128