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Otolaryngol Head Neck Surg. 2017 Nov;157(5):848-852. doi: 10.1177/0194599817715250. Epub 2017 Jul 25.

Evaluation of Noise Exposure Secondary to Wind Noise in Cyclists.

Author information

1
1 Department of Otolaryngology Head and Neck Surgery, Florida Hospital Celebration Health, Celebration, Florida, USA.
2
2 Department of Otolaryngology Head and Neck Surgery, Henry Ford Hospital, Detroit, Michigan, USA.
3
3 Department of Pediatric Otolaryngology Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.
4
4 Automotive Operations, Ford Motor Company, Allen Park, Michigan, USA.

Abstract

Objective Determine if the noise levels of wind exposure experienced by cyclists reach levels that could contribute to noise-induced hearing loss. Study Design Industrial lab research. Setting Industrial wind tunnel. Subjects and Methods A commercial-grade electric wind tunnel was used to simulate different speeds encountered by a cyclist. A single cyclist was used during the simulation for audiometric measurements. Microphones attached near the ears of the cyclist were used to measure the sound (dB sound pressure level) experienced by the cyclist. Loudness levels were measured with the head positioned at 15-degree increments from 0 degrees to 180 degrees relative to the oncoming wind at different speeds (10-60 mph). Results Wind noise ranged from 84.9 dB at 10 mph and increased proportionally with speed to a maximum of 120.3 dB at 60 mph. The maximum of 120.3 dB was measured at the downwind ear when the ear was 90 degrees away from the wind. Conclusions Wind noise experienced by a cyclist is proportional to the speed and the directionality of the wind current. Turbulent air flow patterns are observed that contribute to increased sound exposure in the downwind ear. Consideration of ear deflection equipment without compromising sound awareness for cyclists during prolonged rides is advised to avoid potential noise trauma. Future research is warranted and can include long-term studies including dosimetry measures of the sound and yearly pre- and postexposure audiograms of cyclists to detect if any hearing loss occurs with long-term cycling.

KEYWORDS:

noise exposure; noise-induced hearing loss; wind noise

PMID:
28742424
DOI:
10.1177/0194599817715250
[Indexed for MEDLINE]

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