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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...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi
2018
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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. |
format | Online Article Text |
id | pubmed-6211152 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Hindawi |
record_format | MEDLINE/PubMed |
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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