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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...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2016
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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 |
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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 |
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