Akute Gehörschäden durch extrem hohe Schalldruckpegel

Liedtke, Martin

doi:10.1007/s00106-009-2059-0

Cited by 16 publications

(4 citation statements)

References 6 publications

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“…Measuring the noise level related to airbag deployment revealed values well below threshold values published for ear injury in humans [22][23][24][25][26]. Therefore, it seems not mandatory to include noise level measurements into a standard.…”

Section: Discussionmentioning

confidence: 96%

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Evaluating Airbag Safety Vests for Equestrian Sports

Ade

Stämpfli

Schmitt

2016

Journal of Testing and Evaluation

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Thoracic injuries are common in equestrian sports. Advanced safety equipment, including airbag vests, have been introduced to the market to protect this body region. Standard EN13158 ["Protective Clothing-Protective Jackets, Body and Shoulder Protectors for Equestrian Use: For Horse Riders and Those Working with Horses, and for Horse Drivers-Requirements and Test Methods," European Committee for Standardization, Brussels, 2009 (in German)] defines the minimum requirements for conventional safety vests; however, there is currently no standard related to airbag vests for equestrian sports. The aim of this study is to investigate the applicability of a draft motorcycling standard [prEN1621-4, "Motorcyclists' Protective Clothing Against Mechanical Impact. Part 4: Motorcyclists' Inflatable Protectors-Requirements and Test Methods," Deutsches Institut fu ¨r Normung e.V., Berlin, 2010 (in German)] for equestrian airbag vests. Based on EN13158 and prEN1621-4, airbag vests for equestrian sports were tested. In addition to the tests outlined in the above standards, the pressure induced by the inflating airbag on the thorax was measured and the sound level of the deploying airbag was recorded. The use of airbag vests in conjunction with conventional vests was also investigated. Testing airbag vests in accordance with the existing standards was possible without practical issues. The impact tests indicated that airbag vests were able to absorb higher forces compared to conventional vests. The airbag inflation times were recorded to be between 186 and 260 ms.Trigger forces were measured to be between 150 and 593 N. The maximum pressure on the upper body resulted in 20 to 84 kPa. The bang associated with airbag deployment generated a sound level of 87.3 to 98.4 dB(A). The degree of protection offered by airbag vests was demonstrated by applying the procedures prescribed in existing standards. The draft standard for motorcycling proved to be applicable to equestrian sports. However, regarding the interpretation of the test results, it seems necessary to adapt several threshold values of this standard to account for equestrian-specific parameters.

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Section: Discussionmentioning

confidence: 96%

“…Hodge and Garinther [21] concluded that a pressure of approximately 69 kPa can result in injury of internal organs (e.g., bleeding of the lung). With respect to acoustic trauma, numerous studies indicate that a noise level of 125 dB(A) can result in injury [22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Evaluating Airbag Safety Vests for Equestrian Sports

Ade

Stämpfli

Schmitt

2016

Journal of Testing and Evaluation

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“…15-30 dB über dem maximalen impulsbewerteten Schalldruckpegel liegen. Ein Knalltrauma ist erst ab Spitzenschalldruckpegeln von mehr als 150 (C peak ) denkbar [ 7 ] . Ein Knalltrauma kann durch einen Knall im Millisekundenbereich (1-3 ms) hervorgerufen werden (z.…”

Section: Akute Lärmtraumenunclassified

Die Königsteiner Empfehlung von 2012 - Wesentliche Neuerungen und Änderungen

Brusis

Wolf²,

Meister

2013

Laryngo-Rhino-Otol

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Since 1974, the recommendation for assessment of hearing impairment caused by noise - formerly known as "Königsteiner Merkblatt" (now: "Königsteiner Empfehlung") - has been representing the state of the art for the assessment of the occupational disease BK-No. 2301. It was updated several times, the last time in 2012. It provides a summary of the current medical knowledge. A new measurement for the entire working life - the Effective Noise Dose by Liedtke - was introduced. Otoacoustic emissions (OAE) are now the crucial tests in order to detect a hair cell dysfunction. As from now the tinnitus has to be put under a more comprehensive examination. On the strength of post experience the previous speech audiometry (Freiburger Test) is reliable, it was retrained. In future the indication for hearing aids will be oriented towards the aid guidelines of the legal health insurance. The questionnaire for the expert opinion was revised and the fee was adapted.

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“…akutes Lärmtrauma und keinesfalls ein Knalltrauma. Ein Knalltrauma kann durch Knalle mit einem Spitzenschallpegel ab 150-160 dB (C) entstehen ( Liedtke 2010 ). Hier liegen die Lärmpegel weit unter dieser Schädigungsgrenze.…”

unclassified

Aus der Gutachtenpraxis: Der Schrei ins Ohr

Brusis¹

2012

Laryngo-Rhino-Otol

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Akute Gehörschäden durch extrem hohe Schalldruckpegel

Cited by 16 publications

References 6 publications

Evaluating Airbag Safety Vests for Equestrian Sports

Evaluating Airbag Safety Vests for Equestrian Sports

Die Königsteiner Empfehlung von 2012 - Wesentliche Neuerungen und Änderungen

Aus der Gutachtenpraxis: Der Schrei ins Ohr

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