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Body-worn triaxial accelerometer coherence and reliability related to static posturography in unilateral vestibular failure

Since changes in vestibular function may be one cause of disequilibrium, major advances in measuring postural control and sensory integration in vestibular impairments have been achieved by using posturography. However, in order to overcome problems related to this type of technology, body-worn acce...

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Autores principales: Alessandrini, M., Micarelli, A., Viziano, A., Pavone, I., Costantini, G., Casali, D., Paolizzo, F., Saggio, G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pacini Editore SRL 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5463514/
https://www.ncbi.nlm.nih.gov/pubmed/28516967
http://dx.doi.org/10.14639/0392-100X-1334
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author Alessandrini, M.
Micarelli, A.
Viziano, A.
Pavone, I.
Costantini, G.
Casali, D.
Paolizzo, F.
Saggio, G.
author_facet Alessandrini, M.
Micarelli, A.
Viziano, A.
Pavone, I.
Costantini, G.
Casali, D.
Paolizzo, F.
Saggio, G.
author_sort Alessandrini, M.
collection PubMed
description Since changes in vestibular function may be one cause of disequilibrium, major advances in measuring postural control and sensory integration in vestibular impairments have been achieved by using posturography. However, in order to overcome problems related to this type of technology, body-worn accelerometers (ACC) have been proposed as a portable, low-cost alternative to posturography for measurements of postural sway in a friendly and ecologic environment. Due to the fact that no study to date has shown the experimental validity of ACC-based measures of body sway with respect to posturography for subjects with vestibular deficits, the aim of the present study was: i) to develop and validate a practical tool that can allow clinicians to measure postural sway derangements in an otoneurological setting by ACC, and ii) to provide reliable, sensitive and accurate automatic analysis of sway that could help in discriminating unilateral vestibular failure (UVF) patients. Thus, a group of 13 patients (seven females, 6 males; mean age 48.6 ± 6.4 years) affected for at least 6 months by UVF and 13 matched healthy subjects were instructed to maintain an upright position during a static forceplate-based posturography (FBP) acquisition while wearing a Movit(®) sensor (by Captiks) with 3-D accelerometers mounted on the posterior trunk near the body centre of mass. Pearson product moment correlation demonstrated a high level of correspondence of four time-domain and three frequency-domain measures extracted by ACC and FBP testing; in addition, t-test demonstrated that two ACC-based time- and frequency-domain parameters were reliable measures in discriminating UVF subjects. These aspects, overall, should further highlight the attention of clinicians and researchers to this kind of sway recording technique in the field of otoneurological disorders by considering the possibility to enrich the amount of quantitative and qualitative information useful for discrimination, diagnosis and treatment of UVF. In conclusion, we believe the present ACC-based measurement of sway offers a patient-friendly, reliable, inexpensive and efficient alternative recording technique that is useful – together with clinical balance and mobility tests – in various circumstances, as well as in outcome studies involving diagnosis, follow-up and rehabilitation of UVF patients.
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spelling pubmed-54635142017-06-14 Body-worn triaxial accelerometer coherence and reliability related to static posturography in unilateral vestibular failure Alessandrini, M. Micarelli, A. Viziano, A. Pavone, I. Costantini, G. Casali, D. Paolizzo, F. Saggio, G. Acta Otorhinolaryngol Ital Vestibology Since changes in vestibular function may be one cause of disequilibrium, major advances in measuring postural control and sensory integration in vestibular impairments have been achieved by using posturography. However, in order to overcome problems related to this type of technology, body-worn accelerometers (ACC) have been proposed as a portable, low-cost alternative to posturography for measurements of postural sway in a friendly and ecologic environment. Due to the fact that no study to date has shown the experimental validity of ACC-based measures of body sway with respect to posturography for subjects with vestibular deficits, the aim of the present study was: i) to develop and validate a practical tool that can allow clinicians to measure postural sway derangements in an otoneurological setting by ACC, and ii) to provide reliable, sensitive and accurate automatic analysis of sway that could help in discriminating unilateral vestibular failure (UVF) patients. Thus, a group of 13 patients (seven females, 6 males; mean age 48.6 ± 6.4 years) affected for at least 6 months by UVF and 13 matched healthy subjects were instructed to maintain an upright position during a static forceplate-based posturography (FBP) acquisition while wearing a Movit(®) sensor (by Captiks) with 3-D accelerometers mounted on the posterior trunk near the body centre of mass. Pearson product moment correlation demonstrated a high level of correspondence of four time-domain and three frequency-domain measures extracted by ACC and FBP testing; in addition, t-test demonstrated that two ACC-based time- and frequency-domain parameters were reliable measures in discriminating UVF subjects. These aspects, overall, should further highlight the attention of clinicians and researchers to this kind of sway recording technique in the field of otoneurological disorders by considering the possibility to enrich the amount of quantitative and qualitative information useful for discrimination, diagnosis and treatment of UVF. In conclusion, we believe the present ACC-based measurement of sway offers a patient-friendly, reliable, inexpensive and efficient alternative recording technique that is useful – together with clinical balance and mobility tests – in various circumstances, as well as in outcome studies involving diagnosis, follow-up and rehabilitation of UVF patients. Pacini Editore SRL 2017-06 /pmc/articles/PMC5463514/ /pubmed/28516967 http://dx.doi.org/10.14639/0392-100X-1334 Text en © Copyright by Società Italiana di Otorinolaringologia e Chirurgia Cervico-Facciale, Rome, Italy http://creativecommons.org/licenses/by-nc-nd/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives License, which permits for noncommercial use, distribution, and reproduction in any digital medium, provided the original work is properly cited and is not altered in any way. For details, please refer to http://creativecommons.org/licenses/by-nc-nd/3.0/
spellingShingle Vestibology
Alessandrini, M.
Micarelli, A.
Viziano, A.
Pavone, I.
Costantini, G.
Casali, D.
Paolizzo, F.
Saggio, G.
Body-worn triaxial accelerometer coherence and reliability related to static posturography in unilateral vestibular failure
title Body-worn triaxial accelerometer coherence and reliability related to static posturography in unilateral vestibular failure
title_full Body-worn triaxial accelerometer coherence and reliability related to static posturography in unilateral vestibular failure
title_fullStr Body-worn triaxial accelerometer coherence and reliability related to static posturography in unilateral vestibular failure
title_full_unstemmed Body-worn triaxial accelerometer coherence and reliability related to static posturography in unilateral vestibular failure
title_short Body-worn triaxial accelerometer coherence and reliability related to static posturography in unilateral vestibular failure
title_sort body-worn triaxial accelerometer coherence and reliability related to static posturography in unilateral vestibular failure
topic Vestibology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5463514/
https://www.ncbi.nlm.nih.gov/pubmed/28516967
http://dx.doi.org/10.14639/0392-100X-1334
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