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Using Accelerometers to Measure Physical Activity in Older Patients Admitted to Hospital

BACKGROUND: Low levels of physical activity in older patients during hospitalization have been linked to loss of functional ability. Practical methods of measuring physical activity are needed to better understand this association and to measure the efficacy of interventions. The aims of this study...

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Autores principales: Hartley, Peter, Keevil, Victoria L., Westgate, Kate, White, Tom, Brage, Søren, Romero-Ortuno, Roman, Deaton, Christi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6211152/
https://www.ncbi.nlm.nih.gov/pubmed/30420882
http://dx.doi.org/10.1155/2018/3280240
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author Hartley, Peter
Keevil, Victoria L.
Westgate, Kate
White, Tom
Brage, Søren
Romero-Ortuno, Roman
Deaton, Christi
author_facet Hartley, Peter
Keevil, Victoria L.
Westgate, Kate
White, Tom
Brage, Søren
Romero-Ortuno, Roman
Deaton, Christi
author_sort Hartley, Peter
collection PubMed
description BACKGROUND: Low levels of physical activity in older patients during hospitalization have been linked to loss of functional ability. Practical methods of measuring physical activity are needed to better understand this association and to measure the efficacy of interventions. The aims of this study were to evaluate the feasibility of using accelerometers to discriminate between lying, sitting, standing, and standing and moving and to determine the acceptability of the method from the patients' perspective. METHODS: A convenience sample of 24 inpatients was recruited. Participants wore accelerometers on their thigh and on their lower leg (just above the ankle) for 48 hours during their hospitalization. Postural changes and movement during the 48 hours were differentiated using derived pitch angles of the lower leg and thigh, and nongravity vector magnitude of the lower leg, respectively. RESULTS: On average, patients were lying for 61.2% of the recording time, sitting for 35.6%, standing but not moving 2.1%, and standing and moving 1.1%. All participants found the accelerometers acceptable to wear. CONCLUSIONS: The methodology described in this study can be used to differentiate between lying, sitting, standing, and moving and is acceptable from a hospitalized older person's perspective.
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spelling pubmed-62111522018-11-12 Using Accelerometers to Measure Physical Activity in Older Patients Admitted to Hospital Hartley, Peter Keevil, Victoria L. Westgate, Kate White, Tom Brage, Søren Romero-Ortuno, Roman Deaton, Christi Curr Gerontol Geriatr Res Clinical Study BACKGROUND: Low levels of physical activity in older patients during hospitalization have been linked to loss of functional ability. Practical methods of measuring physical activity are needed to better understand this association and to measure the efficacy of interventions. The aims of this study were to evaluate the feasibility of using accelerometers to discriminate between lying, sitting, standing, and standing and moving and to determine the acceptability of the method from the patients' perspective. METHODS: A convenience sample of 24 inpatients was recruited. Participants wore accelerometers on their thigh and on their lower leg (just above the ankle) for 48 hours during their hospitalization. Postural changes and movement during the 48 hours were differentiated using derived pitch angles of the lower leg and thigh, and nongravity vector magnitude of the lower leg, respectively. RESULTS: On average, patients were lying for 61.2% of the recording time, sitting for 35.6%, standing but not moving 2.1%, and standing and moving 1.1%. All participants found the accelerometers acceptable to wear. CONCLUSIONS: The methodology described in this study can be used to differentiate between lying, sitting, standing, and moving and is acceptable from a hospitalized older person's perspective. Hindawi 2018-10-18 /pmc/articles/PMC6211152/ /pubmed/30420882 http://dx.doi.org/10.1155/2018/3280240 Text en Copyright © 2018 Peter Hartley et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Clinical Study
Hartley, Peter
Keevil, Victoria L.
Westgate, Kate
White, Tom
Brage, Søren
Romero-Ortuno, Roman
Deaton, Christi
Using Accelerometers to Measure Physical Activity in Older Patients Admitted to Hospital
title Using Accelerometers to Measure Physical Activity in Older Patients Admitted to Hospital
title_full Using Accelerometers to Measure Physical Activity in Older Patients Admitted to Hospital
title_fullStr Using Accelerometers to Measure Physical Activity in Older Patients Admitted to Hospital
title_full_unstemmed Using Accelerometers to Measure Physical Activity in Older Patients Admitted to Hospital
title_short Using Accelerometers to Measure Physical Activity in Older Patients Admitted to Hospital
title_sort using accelerometers to measure physical activity in older patients admitted to hospital
topic Clinical Study
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6211152/
https://www.ncbi.nlm.nih.gov/pubmed/30420882
http://dx.doi.org/10.1155/2018/3280240
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