AN ASSESSMENT OF EXPOSURE TO NOISE AND TEMPORARY CHANGES IN HEARING RELATED TO WORKING AS A FITNESS INSTRUCTOR/ OCENA NARAZENIA NA HALAS I CZASOWYCH ZMIAN SLUCHU ZWIAZANYCH Z PRACA NA STANOWISKU INSTRUKTORA FITNESS

Background: Music is for many people an integral part of their lives. In recent years, loud music, whether recorded or played live, has been a significant source of noise. The aim of the study was to assess the relationship between exposure to high sound levels and temporary threshold shift (TTS) in...

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Bibliographic Details
Published in:Medycyna pracy 2021-07, Vol.72 (4), p.391
Main Authors: Wolniakowska, Anna, Dudarewicz, Adam, Zaborowski, Kamil, Pawlaczyk-Luszczynska, Malgorzata, Sliwinska-Kowalska, Mariola
Format: Article
Language:English
Subjects:
Acoustic properties
Deafness, Noise induced
Health aspects
Health clubs
Occupational health and safety
Personal trainers
Risk factors
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Summary:Background: Music is for many people an integral part of their lives. In recent years, loud music, whether recorded or played live, has been a significant source of noise. The aim of the study was to assess the relationship between exposure to high sound levels and temporary threshold shift (TTS) in people working as fitness instructors. Material and Methods: The study included a total of 29 people (26 women and 3 men, age: 33[+ or -]6 years) employed in 8 fitness clubs. The sound levels and the frequency characteristics of noise were assessed using individual dosimetry. Hearing threshold was evaluated by pre- and post-exposure pure tone audiometry (PTA), yielding a total of 116 audiograms. Results: Occupational exposure of fitness instructors to noise lasted 60-120 min and the A- weighted sound pressure level ([L.sub.Aeq,T]) in their workplace ranged 76.3-96.0 dBA (M = 87.1 dB). In 12% of individual measurements, the maximum admissible intensity (MAI) value for noise at the workplace was exceeded (MAI = 85 dB). In 41% of the surveyed instructors, a TTS of [greater than or equal to]6 dB at 4 kHz was observed. Conclusions: Fitness instructors may be a risk of hearing impairment related to their work. Med Pr. 2021;72(4):391-7 Key words: occupational exposure, noise, temporary changes in hearing, pure tone audiometry, fitness club, noise-induced hearing impairment Wstep: Muzyka jest dla wielu osob nieodlacznym elementem zycia. W ostatnich latach glosna muzyka, zarowno grana na zywo, jak i odtwarzana, stanowi istotne zrodlo halasu. Celem niniejszej pracy byla ocena zwiazku miedzy ekspozycja na wysokie poziomy dzwieku a czasowym przesunieciem progu sluchu (temporary threshold shift--TTS) u osob pracujacych na stanowisku instruktora fitness. Material i metody: Badaniem objeto 29 osob (26 kobiet i 3 mezczyzn, srednia wieku: 33[+ or -]6 lat) zatrudnionych w 8 klubach fitness. Poziomy dzwiekow i charakterystyke czestotliwosciowa halasu zmierzono z zastosowaniem dozymetrii indywidualnej. Progi sluchu oceniano za pomoca audiometrii tonalnej przeprowadzanej przed rozpoczeciem zajec fitness oraz bezposrednio po ich zakonczeniu, otrzymujac lacznie 116 audiogramow przed- i poekspozycyjnych. Wyniki: Zawodowe narazenie instruktorow fitness na halas trwalo 60-120 min, a rownowazny poziom cisnienia akustycznego A ([L.sub.Aeq,T]) w miejscu ich pracy wynosil 76,3-96,0 dB (M = 87,1 dB). W 12% indywidualnych pomiarow odnotowano przekroczenie najwyzszego dopuszczalnego natezenia
ISSN:0465-5893
DOI:10.13075/mp.5893.01102