Measuring postural stability with an inertial sensor: validity and sensitivity

Christopher Neville,1 Caleb Ludlow,1 Brian Rieger21Department of Physical Therapy Education, 2Upstate Concussion Center, SUNY Upstate Medical University, Syracuse, NY, USAIntroduction/purpose: To examine the concurrent validity, and sensitivity, of an inertial sensor for use in the assessment of pos...

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Autores principales:	Neville C, Ludlow C, Rieger B
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2015
Materias:	Medical technology R855-855.5
Acceso en línea:	https://doaj.org/article/ceae47e7ad7e4e19b62361384e288f06
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spelling	oai:doaj.org-article:ceae47e7ad7e4e19b62361384e288f062021-12-02T11:28:22ZMeasuring postural stability with an inertial sensor: validity and sensitivity1179-1470https://doaj.org/article/ceae47e7ad7e4e19b62361384e288f062015-11-01T00:00:00Zhttps://www.dovepress.com/measuring-postural-stability-with-an-inertial-sensor-validity-and-sens-peer-reviewed-article-MDERhttps://doaj.org/toc/1179-1470Christopher Neville,1 Caleb Ludlow,1 Brian Rieger21Department of Physical Therapy Education, 2Upstate Concussion Center, SUNY Upstate Medical University, Syracuse, NY, USAIntroduction/purpose: To examine the concurrent validity, and sensitivity, of an inertial sensor for use in the assessment of postural sway.Methods: This was a laboratory-based, repeated-measures design with ten healthy participants. Concurrent validity was tested between an inertial sensor, forceplate, and rigid-body kinematics across three commonly used balance tests. Further, the inertial sensor measures were compared across eight commonly used tests of balance. Variables manipulated include stance position, surface condition, and eyes-open versus eyes-closed.Results: The inertial sensor was correlated to both the forceplate-derived measures (r=0.793) and rigid-body kinematics (r=0.887). Significant differences between the balance tests were observed when tested with the inertial sensor. In general, there was a three-way interactions between the three balance factors (surface, stance, and vision) leading to pairwise comparisons between each balance test. The root-mean-square showed an increase across tasks of greater difficulty ranging from an average of 0.0368 with two legs, eyes-open to 0.911 when tested during tandem stance, eyes-closed tested on a foam pad.Conclusion: The new inertial sensor shows promise for use in the assessment of postural sway. Additionally, the inertial sensor appears sensitive to differences in balance tasks of varying degrees of difficulty when tested in a healthy sample of young adults. This inertial sensor may provide new opportunities for further research in the assessment of balance changes in the mild traumatic brain injury population.Keywords: balance, concussion, forceplate, posturography, accelerometerNeville CLudlow CRieger BDove Medical PressarticleMedical technologyR855-855.5ENMedical Devices: Evidence and Research, Vol 2015, Iss default, Pp 447-455 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medical technology R855-855.5
spellingShingle	Medical technology R855-855.5 Neville C Ludlow C Rieger B Measuring postural stability with an inertial sensor: validity and sensitivity
description	Christopher Neville,1 Caleb Ludlow,1 Brian Rieger21Department of Physical Therapy Education, 2Upstate Concussion Center, SUNY Upstate Medical University, Syracuse, NY, USAIntroduction/purpose: To examine the concurrent validity, and sensitivity, of an inertial sensor for use in the assessment of postural sway.Methods: This was a laboratory-based, repeated-measures design with ten healthy participants. Concurrent validity was tested between an inertial sensor, forceplate, and rigid-body kinematics across three commonly used balance tests. Further, the inertial sensor measures were compared across eight commonly used tests of balance. Variables manipulated include stance position, surface condition, and eyes-open versus eyes-closed.Results: The inertial sensor was correlated to both the forceplate-derived measures (r=0.793) and rigid-body kinematics (r=0.887). Significant differences between the balance tests were observed when tested with the inertial sensor. In general, there was a three-way interactions between the three balance factors (surface, stance, and vision) leading to pairwise comparisons between each balance test. The root-mean-square showed an increase across tasks of greater difficulty ranging from an average of 0.0368 with two legs, eyes-open to 0.911 when tested during tandem stance, eyes-closed tested on a foam pad.Conclusion: The new inertial sensor shows promise for use in the assessment of postural sway. Additionally, the inertial sensor appears sensitive to differences in balance tasks of varying degrees of difficulty when tested in a healthy sample of young adults. This inertial sensor may provide new opportunities for further research in the assessment of balance changes in the mild traumatic brain injury population.Keywords: balance, concussion, forceplate, posturography, accelerometer
format	article
author	Neville C Ludlow C Rieger B
author_facet	Neville C Ludlow C Rieger B
author_sort	Neville C
title	Measuring postural stability with an inertial sensor: validity and sensitivity
title_short	Measuring postural stability with an inertial sensor: validity and sensitivity
title_full	Measuring postural stability with an inertial sensor: validity and sensitivity
title_fullStr	Measuring postural stability with an inertial sensor: validity and sensitivity
title_full_unstemmed	Measuring postural stability with an inertial sensor: validity and sensitivity
title_sort	measuring postural stability with an inertial sensor: validity and sensitivity
publisher	Dove Medical Press
publishDate	2015
url	https://doaj.org/article/ceae47e7ad7e4e19b62361384e288f06
work_keys_str_mv	AT nevillec measuringposturalstabilitywithaninertialsensorvalidityandsensitivity AT ludlowc measuringposturalstabilitywithaninertialsensorvalidityandsensitivity AT riegerb measuringposturalstabilitywithaninertialsensorvalidityandsensitivity
_version_	1718395906066219008

Measuring postural stability with an inertial sensor: validity and sensitivity

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