Cargando…

Inertial Sensor Based Analysis of Lie-to-Stand Transfers in Younger and Older Adults

Many older adults lack the capacity to stand up again after a fall. Therefore, to analyse falls it is relevant to understand recovery patterns, including successful and failed attempts to get up from the floor in general. This study analysed different kinematic features of standing up from the floor...

Descripción completa

Detalles Bibliográficos
Autores principales: Schwickert, Lars, Boos, Ronald, Klenk, Jochen, Bourke, Alan, Becker, Clemens, Zijlstra, Wiebren
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5017442/
https://www.ncbi.nlm.nih.gov/pubmed/27529249
http://dx.doi.org/10.3390/s16081277
_version_ 1782452748964331520
author Schwickert, Lars
Boos, Ronald
Klenk, Jochen
Bourke, Alan
Becker, Clemens
Zijlstra, Wiebren
author_facet Schwickert, Lars
Boos, Ronald
Klenk, Jochen
Bourke, Alan
Becker, Clemens
Zijlstra, Wiebren
author_sort Schwickert, Lars
collection PubMed
description Many older adults lack the capacity to stand up again after a fall. Therefore, to analyse falls it is relevant to understand recovery patterns, including successful and failed attempts to get up from the floor in general. This study analysed different kinematic features of standing up from the floor. We used inertial sensors to describe the kinematics of lie-to-stand transfer patterns of younger and healthy older adults. Fourteen younger (20–50 years of age, 50% men) and 10 healthy older community dwellers (≥60 years; 50% men) conducted four lie-to-stand transfers from different initial lying postures. The analysed temporal, kinematic, and elliptic fitting complexity measures of transfer performance were significantly different between younger and older subjects (i.e., transfer duration, angular velocity (RMS), maximum vertical acceleration, maximum vertical velocity, smoothness, fluency, ellipse width, angle between ellipses). These results show the feasibility and potential of analysing kinematic features to describe the lie-to-stand transfer performance, to help design interventions and detection approaches to prevent long lies after falls. It is possible to describe age-related differences in lie-to-stand transfer performance using inertial sensors. The kinematic analysis remains to be tested on patterns after real-world falls.
format Online
Article
Text
id pubmed-5017442
institution National Center for Biotechnology Information
language English
publishDate 2016
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-50174422016-09-22 Inertial Sensor Based Analysis of Lie-to-Stand Transfers in Younger and Older Adults Schwickert, Lars Boos, Ronald Klenk, Jochen Bourke, Alan Becker, Clemens Zijlstra, Wiebren Sensors (Basel) Article Many older adults lack the capacity to stand up again after a fall. Therefore, to analyse falls it is relevant to understand recovery patterns, including successful and failed attempts to get up from the floor in general. This study analysed different kinematic features of standing up from the floor. We used inertial sensors to describe the kinematics of lie-to-stand transfer patterns of younger and healthy older adults. Fourteen younger (20–50 years of age, 50% men) and 10 healthy older community dwellers (≥60 years; 50% men) conducted four lie-to-stand transfers from different initial lying postures. The analysed temporal, kinematic, and elliptic fitting complexity measures of transfer performance were significantly different between younger and older subjects (i.e., transfer duration, angular velocity (RMS), maximum vertical acceleration, maximum vertical velocity, smoothness, fluency, ellipse width, angle between ellipses). These results show the feasibility and potential of analysing kinematic features to describe the lie-to-stand transfer performance, to help design interventions and detection approaches to prevent long lies after falls. It is possible to describe age-related differences in lie-to-stand transfer performance using inertial sensors. The kinematic analysis remains to be tested on patterns after real-world falls. MDPI 2016-08-12 /pmc/articles/PMC5017442/ /pubmed/27529249 http://dx.doi.org/10.3390/s16081277 Text en © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Schwickert, Lars
Boos, Ronald
Klenk, Jochen
Bourke, Alan
Becker, Clemens
Zijlstra, Wiebren
Inertial Sensor Based Analysis of Lie-to-Stand Transfers in Younger and Older Adults
title Inertial Sensor Based Analysis of Lie-to-Stand Transfers in Younger and Older Adults
title_full Inertial Sensor Based Analysis of Lie-to-Stand Transfers in Younger and Older Adults
title_fullStr Inertial Sensor Based Analysis of Lie-to-Stand Transfers in Younger and Older Adults
title_full_unstemmed Inertial Sensor Based Analysis of Lie-to-Stand Transfers in Younger and Older Adults
title_short Inertial Sensor Based Analysis of Lie-to-Stand Transfers in Younger and Older Adults
title_sort inertial sensor based analysis of lie-to-stand transfers in younger and older adults
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5017442/
https://www.ncbi.nlm.nih.gov/pubmed/27529249
http://dx.doi.org/10.3390/s16081277
work_keys_str_mv AT schwickertlars inertialsensorbasedanalysisoflietostandtransfersinyoungerandolderadults
AT boosronald inertialsensorbasedanalysisoflietostandtransfersinyoungerandolderadults
AT klenkjochen inertialsensorbasedanalysisoflietostandtransfersinyoungerandolderadults
AT bourkealan inertialsensorbasedanalysisoflietostandtransfersinyoungerandolderadults
AT beckerclemens inertialsensorbasedanalysisoflietostandtransfersinyoungerandolderadults
AT zijlstrawiebren inertialsensorbasedanalysisoflietostandtransfersinyoungerandolderadults