噪声暴露及其对室内自行车指导员听力的影响

IF 1.7 4区 物理与天体物理
Marcos Vinícius Soares Martins, Karina Mary de Paiva, Eriberto Oliveira do Nascimento, Bruno Sérgio Portela, Danúbia Hillesheim, Paulo Henrique Zannin
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引用次数: 0

摘要

了解职业暴露于SPL对室内自行车(IC)教练听力阈值的影响。这是一项横断面研究,涉及巴西PR Guarapuava健身中心的11名IC教练。问卷用于评估职业特征和报告的听觉和听觉外症状。在7个时刻通过纯音测听测试评估听力阈值:声学休息14小时后,暴露于95、85和75 dB(A)的SPL之前和之后,对教师组进行了总共77次测量。使用Kruskal–Wallis检验来评估平均值的差异。使用主成分分析应用k均值和成分法来验证与听力阈值下的宽带多频率测量相关的主要因素。在所有测试频率下,平均双侧听力阈值在95dB(a)的强度下均显著增加(p <; 0.05)并且在大多数频率下为85dB(A)。结论暴露于85dB(A)和95dB(A。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Noise Exposure and its Effects on the Hearing of Indoor Cycling Instructors

Noise Exposure and its Effects on the Hearing of Indoor Cycling Instructors

To ascertain the influence of occupational exposure to SPL on the hearing threshold of indoor cycling (IC) instructors. This is a cross-sectional study involving eleven IC instructors at fitness centers in Guarapuava, PR, Brazil Questionnaires were applied to assess occupational characteristics and reported auditory and extra-auditory symptoms. The hearing threshold was evaluated by pure tone audiometry testing at seven moments: after 14 h of acoustic rest, and before and immediately after exposure to SPLs of 95, 85 and 75 dB(A), making a total of 77 measurements of the group of instructors. Differences in means were assessed using the Kruskal–Wallis test. The k-means and composition method was applied using principal component analysis to verify the main factors associated with the broadband multi-frequency measurement at the hearing threshold. The average bilateral hearing threshold showed a significant increase at the intensity of 95 dB(A), at all the tested frequencies (p < 0.05) and at most of the frequencies, at 85 dB(A). Conclusions exposure to the equivalent sound pressure levels of 85 dB(A) and 95 dB(A) significantly altered the average hearing threshold of indoor cycling instructors.

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来源期刊
Acoustics Australia
Acoustics Australia ACOUSTICS-
自引率
5.90%
发文量
24
期刊介绍: Acoustics Australia, the journal of the Australian Acoustical Society, has been publishing high quality research and technical papers in all areas of acoustics since commencement in 1972. The target audience for the journal includes both researchers and practitioners. It aims to publish papers and technical notes that are relevant to current acoustics and of interest to members of the Society. These include but are not limited to: Architectural and Building Acoustics, Environmental Noise, Underwater Acoustics, Engineering Noise and Vibration Control, Occupational Noise Management, Hearing, Musical Acoustics.
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