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J Am Acad Audiol 2023; 34(07/08): 153-158
DOI: 10.1055/a-2135-7198
Research Article

Vibration Thresholds Using Conventional Audiometry are Clinically Useful Indicators of Postural Instability in Older Adults

Antonio Sam Pierre 
1   School of Speech Language Pathology and Audiology, Université de Montréal, Montreal, Quebec, Canada
2   Institut Universitaire sur la Réadaptation en Déficience Physique de Montréal (IURDPM), Pavillon Laurier, CIUSSS du Centre-Sud-de-l'Île-de-Montréal
,
Assan Mary Cedras 
1   School of Speech Language Pathology and Audiology, Université de Montréal, Montreal, Quebec, Canada
2   Institut Universitaire sur la Réadaptation en Déficience Physique de Montréal (IURDPM), Pavillon Laurier, CIUSSS du Centre-Sud-de-l'Île-de-Montréal
,
Benoit-Antoine Bacon
3   Carleton University, Ottawa, Ontario, Canada
,
Francois Champoux 
1   School of Speech Language Pathology and Audiology, Université de Montréal, Montreal, Quebec, Canada
,
Maxime Maheu 
1   School of Speech Language Pathology and Audiology, Université de Montréal, Montreal, Quebec, Canada
2   Institut Universitaire sur la Réadaptation en Déficience Physique de Montréal (IURDPM), Pavillon Laurier, CIUSSS du Centre-Sud-de-l'Île-de-Montréal
› Author Affiliations Funding This work was supported by NSERC (RGPIN-2022-04402) and by the Fonds de Recherche en Santé du Québec (FRQS-329974) awarded to Maxime Maheu and the Foundation Caroline Durand Chair in Hearing and Aging awarded to François Champoux.
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Abstract

Background Falls are a major health concern with potentially dramatic consequences for people over 65 years of age. One crucial determinant in the risk of falls in older adults is postural control, a complex process that requires the contribution of different sensory modalities, namely visual, vestibular, auditory, and somatosensory. While there are well-established methods to screen for age-related vision, hearing, tactile, and vestibular impairments, there are very few widely available methods to screen for somatosensory function, but studies indicate that ankle audiometry (vibration thresholds) using a common B-71 bone vibrator can serve that purpose. To date, unfortunately, this technique has received little attention as a tool to measure postural instability in older adults.

Purpose The objective of the present study was to examine postural control in older adults with and without degradation of the somatosensory functions, as determined with ankle audiometry.

Research Design This was standard group comparison.

Study Sample In total, 36 healthy elderly aged between 65 and 80 years old were divided into two groups (low vibration threshold [n = 18] and high vibration threshold [n = 18]).

Data Collection and Analysis Standard audiometry, video head impulse test, vibration thresholds (big toe, ankle, and tibia), and static postural control task using a force platform were performed.

Results Greater postural instability in participants with higher (worse) vibration thresholds as compared with participants with lower (better) vibration thresholds was observed even though both groups were comparable on hearing threshold and vestibular function.

Conclusion The results indicate that performing a simple vibration threshold evaluation, using a clinically available B-71 with a cut-off value of 42 dB hearing loss, could be an effective, fast, and easy-to-use procedure for detecting people at risk of falls.

Keywords

ankle audiometry - somatosensory - proprioceptive components - balance - falls

Authors' Contributions

M.M. designed the research. A.S.P. performed the research. All authors analyzed the data and wrote the paper.




Publication History

Received: 05 May 2023

Accepted: 20 July 2023

Accepted Manuscript online:
24 July 2023

Article published online:
28 October 2024

© 2024. American Academy of Audiology. This article is published by Thieme.

Thieme Medical Publishers, Inc.
333 Seventh Avenue, 18th Floor, New York, NY 10001, USA

 

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