Relative Hearing Levels and Types of Hearing loss among Four Selected Groups of Air Force Personnel

1959 ◽  
Author(s):  
Lennart L. Kopra ◽  
Duilio T. Pedrini ◽  
Roger W. Fullington
Keyword(s):  
Hearing Loss ◽  
Air Force

165. Hearing Loss Among Finnish Air Force Military Pilots

2004 ◽  
Author(s):  
J. Starck ◽  
E. Toppila ◽  
P. Kuronen ◽  
M. Sorri
Keyword(s):  
Hearing Loss ◽  
Air Force ◽  
Military Pilots

scholarly journals Hearing Loss And Health Complaints In Technicians Air Skadron 3 Iswahjudi Airport And Its Association With Aircraft Noise

2019 ◽  
Vol 11 (1) ◽  
pp. 61
Author(s):  
Ristyna Choirunisa
Keyword(s):  
Hearing Loss ◽  
Air Force ◽  
Aircraft Noise ◽  
Psychological Disorder ◽  
Control Group ◽  
P Value ◽  
Health Complaints ◽  
Spearman Correlation ◽  
Correlation Test ◽  
Spearman Correlation Test

Aviation is the most significant part of Indonesian Air Force duty. Air Force’s aircraft takes a role not only as Indonesian army agency transportation vehicle but also crucial for Indonesian air territory security protection. However the level of noises resulted from Air Force aviation operation activity such as take off of aircraft reached 130 dBA, so the operation can causes auditory and non auditory adverse effects such as communication, physiological disorder, and psycological disorder. The aim of this study  is to analyze factors induced to the hearing loss and analyze the effects of aircraft noises to technician health complaints. This research using case control approach and it was conducted by recruiting subject respondents group randomly of 20 officers includes of 10 technician as study group and 10 non technician as control group. The measurement of aircraft noise level was performed 4 times during 8 hours used Sound Level Meter. The results of aircraft noise measurement in flightline area was exceeding the threshold value of 95,56 dBA. The results of the study shows that aircraft noise significantly associated with to technician hearing loss p-value=0,026 (Spearman correlation test, p<0,05). Other factors that are associated significantly with technician hearing loss include aged p-value=0,023 (Pearson correlation test,  p<0,05). Insignificant association is showed for work period with p-value=0,038 (spearman correlation test, p<0,05). In addition, the aircraft noise is associated to health complaint as psychological disorder p-value=0,033 (simple logistic regression test, p-value <0,05). The conclusion of research is that aircraft activities affected hearing loss and technician psychological disorder.

Hearing threshold shifts among military pilots of the Israeli Air Force

2017 ◽  
Vol 164 (1) ◽  
pp. 46-51 ◽  
Author(s):  
Liyona Kampel-Furman ◽  
Z Joachims ◽  
H Bar-Cohen ◽  
A Grossman ◽  
Y Frenkel-Nir ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Air Force ◽  
Military Service ◽  
Noise Exposure ◽  
Cohort Analysis ◽  
Mean Shift ◽  
Hearing Threshold ◽  
Hearing Thresholds ◽  
Significant Difference ◽  
Potential Risk Factors

BackgroundMilitary aviators are potentially at risk for developing noise-induced hearing loss. Whether ambient aircraft noise exposure causes hearing deficit beyond the changes attributed to natural ageing is debated. The aim of this research was to assess changes in hearing thresholds of Israeli Air Force (IAF) pilots over 20 years of military service and identify potential risk factors for hearing loss.MethodsA retrospective cohort analysis was conducted of pure-tone air conduction audiograms of pilots, from their recruitment at 18 years of age until the last documented medical check-up. Mean hearing thresholds were analysed in relation to age, total flight hours and aircraft platform. Comparisons were made to the hearing thresholds of air traffic controllers (ATCs) who were not exposed to the noise generated by aircraft while on duty.ResultsOne hundred and sixty-three pilots were included, with flying platforms ranging from fighter jets (n=54), combat helicopters (n=27), transport helicopters (n=52) and transport aircraft (n=30). These were compared with the results from 17 ATCs. A marked notch in the frequency range of 4–6 kHz was demonstrated in the mean audiograms of all platforms pilots, progressing with ageing. Hearing threshold shifts in relation to measurements at recruitment were first noted at the age of 30 years, particularly at 4 kHz (mean shift of 2.97 dB, p=0.001). There was no statistical association between flying variables and hearing thresholds adjusted for age by logistic regression analysis.ConclusionsThe audiometric profile of IAF pilots has a pattern compatible with noise exposure, as reflected by characteristic noise notch. However, no flight variable was associated with deterioration of hearing thresholds, and no significant difference from non-flying controls (ATCs) was seen.

scholarly journals Noise Induced Hearing Loss among Aircrews of Bangladesh Air Force

2021 ◽  
Vol 16 (1) ◽  
pp. 12-15
Author(s):  
Iftekharul Islam ◽  
Md Abdullah Al Jobair ◽  
Mohammad Ahmed Ahsan ◽  
Mushtaq Ahmad ◽  
Mohammad Delwar Hossain ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Air Force ◽  
Pure Tone ◽  
Prolonged Exposure ◽  
Age Groups ◽  
Hearing Threshold ◽  
Pure Tone Audiometry ◽  
Noise Induced Hearing Loss ◽  
Cross Sectional ◽  
Military Pilots

Introduction: Noise-induced hearing loss is a significant, often unrecognized health problem among the military pilots. Advanced aircraft are powerful and more efficient but generate high noise causing noise-induced hearing loss (NIHL) among military pilots. Aim: To determine the prevalence of noise-induced hearing loss among pilots of the Bangladesh Air Force (BAF) and its association with aircraft type and flying hours. Methods: This cross-sectional study was carried out at Central Medical Board (CMB), Bangladesh Air Force (BAF) Dhaka from April 2017 to March 2018. The audiometry was done in the ENT department of CMB, BAF. Pure-tone audiometry was used to measure hearing thresholds and following pure tone frequencies were used for the test: 0.25, 0.5, 1, 2, 3, 4, 6 and 8 kHz. The association between flight hours and the development of noise-induced hearing loss was analyzed in the different age groups. Results: The study revealed NIHL in the aircrew was 16.5% with a higher prevalence among the helicopter pilots (18.6%) as compared with fighter (16.7%) and transport (11.5%) pilots. The left ear was affected in most of the cases than the right ear. Pilots of more than 40 years old and ≥1500 flying hours had a significantly higher hearing threshold compared with other categories. Conclusion: Exposure to noise in aircrew is unavoidable. By avoiding prolonged exposure to loud noise environments and utilization of personal hearing safety devices can prevent noise-induced hearing loss. JAFMC Bangladesh. Vol 15, No 1 (June) 2020: 12-15

Updating the assessment methodology of the acoustic load of flight crew members in the cabins of civil aviation aircraft

2020 ◽  
pp. 100-116
Author(s):  
I. V. Bukhtiyarov ◽  
M. F. Vilk ◽  
V. D. Glukhovskiy ◽  
N. N. Kurierov ◽  
V. A. Kaptsov ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Air Force ◽  
Civil Aviation ◽  
Direct Algorithm ◽  
Assessment Methodology ◽  
Flight Crew ◽  
Noise Levels ◽  
Cabin Noise ◽  
Acoustic Load ◽  
Hearing Organ

The article discusses the issues of adjustment, developed in 2007 and supplemented in 2009, of the methodology for evaluating the equivalent level of cabin noise of civil aviation aircraft in Russia. The relevance of the problem is due to high levels of professional hearing loss among the aircrew members of the air force, which is directly related to the lack of unified and competent approaches to assessing the acoustic load on the hearing organ of the aircrew members. The updated methodology contains full-fledged data on noise levels in modern domestic and foreign airliners, data on certification of acoustic efficiency of aircraft accessories, a direct algorithm and formulas for calculating the noise load for the selected periods of flight operation.

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