The effects of body position on distortion-product Otoacoustic emission testing

Driscoll, Carlie, Kei, Joseph, Shyu, Jenny and Fukai, Natasha (2004) The effects of body position on distortion-product Otoacoustic emission testing. Journal of the American Academy of Audiology, 15 8: 566-573. doi:10.3766/jaaa.15.8.4

Author Driscoll, Carlie
Kei, Joseph
Shyu, Jenny
Fukai, Natasha
Title The effects of body position on distortion-product Otoacoustic emission testing
Journal name Journal of the American Academy of Audiology   Check publisher's open access policy
ISSN 1050-0545
Publication date 2004-09-01
Sub-type Article (original research)
DOI 10.3766/jaaa.15.8.4
Volume 15
Issue 8
Start page 566
End page 573
Total pages 8
Editor J. Jerger
Place of publication Canada
Publisher American Academy of Audiology
Language eng
Subject C1
329999 Medical and Health Sciences not elsewhere classified
730303 Occupational, speech and physiotherapy
Abstract Otoacoustic emissions are frequently acquired from patients in a variety of body positions aside from the standard, seated orientation. Yet little knowledge is available regarding whether these deviations will produce nonpathological changes to the clinical results obtained. The present study aimed to describe the effects of body position on the distortion-product otoacoustic emissions of 60 normal-hearing adults. With particular attention given to common clinical practice, the Otodynamics ILO292, and the measurement parameters of amplitude, signal-to-noise ratio, and noise were utilized. Significant position-related effects and interactions were revealed for all parameters. Specifically, stronger emissions in the mid frequencies and higher noise levels at the extreme low and high frequencies were produced by testing subjects while lying on their side compared with the seated position. Further analysis of body position effects on emissions is warranted, in order to determine the need for clinical application of position-dependent normative data.
Keyword adult
body position
distortion-product otoacoustic emissions
Q-Index Code C1

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Created: Wed, 15 Aug 2007, 13:53:34 EST