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Association between Self-Reported and Accelerometer-Based Estimates of Physical Activity in Portuguese Older Adults

Accurate assessment of physical activity (PA) is crucial in interventions promoting it and in studies exploring its association with health status. Currently, there is a wide range of assessment tools available, including subjective and objective measures. This study compared accelerometer-based est...

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Autores principales: Domingos, Célia, Correia Santos, Nadine, Pêgo, José Miguel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8038119/
https://www.ncbi.nlm.nih.gov/pubmed/33804834
http://dx.doi.org/10.3390/s21072258
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author Domingos, Célia
Correia Santos, Nadine
Pêgo, José Miguel
author_facet Domingos, Célia
Correia Santos, Nadine
Pêgo, José Miguel
author_sort Domingos, Célia
collection PubMed
description Accurate assessment of physical activity (PA) is crucial in interventions promoting it and in studies exploring its association with health status. Currently, there is a wide range of assessment tools available, including subjective and objective measures. This study compared accelerometer-based estimates of PA with self-report PA data in older adults. Additionally, the associations between PA and health outcomes and PA profiles were analyzed. Participants (n = 110) wore a Xiaomi Mi Band 2(®) for fifteen consecutive days. Self-reported PA was assessed using the International Physical Activity Questionnaire (IPAQ) and the Yale Physical Activity Survey (YPAS). The Spearman correlation coefficient was used to compare self-reported and accelerometer-measured PA and associations between PA and health. Bland–Altman plots were performed to assess the agreement between methods. Results highlight a large variation between self-reported and Xiaomi Mi Band 2(®) estimates, with poor general agreement. The highest difference was found for sedentary time. Low positive correlations were observed for IPAQ estimates (sedentary, vigorous, and total PA) and moderate for YPAS vigorous estimates. Finally, self-reported and objectively measured PA associated differently with health outcomes. Summarily, although accelerometry has the advantage of being an accurate method, self-report questionnaires could provide valuable information about the context of the activity.
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spelling pubmed-80381192021-04-12 Association between Self-Reported and Accelerometer-Based Estimates of Physical Activity in Portuguese Older Adults Domingos, Célia Correia Santos, Nadine Pêgo, José Miguel Sensors (Basel) Article Accurate assessment of physical activity (PA) is crucial in interventions promoting it and in studies exploring its association with health status. Currently, there is a wide range of assessment tools available, including subjective and objective measures. This study compared accelerometer-based estimates of PA with self-report PA data in older adults. Additionally, the associations between PA and health outcomes and PA profiles were analyzed. Participants (n = 110) wore a Xiaomi Mi Band 2(®) for fifteen consecutive days. Self-reported PA was assessed using the International Physical Activity Questionnaire (IPAQ) and the Yale Physical Activity Survey (YPAS). The Spearman correlation coefficient was used to compare self-reported and accelerometer-measured PA and associations between PA and health. Bland–Altman plots were performed to assess the agreement between methods. Results highlight a large variation between self-reported and Xiaomi Mi Band 2(®) estimates, with poor general agreement. The highest difference was found for sedentary time. Low positive correlations were observed for IPAQ estimates (sedentary, vigorous, and total PA) and moderate for YPAS vigorous estimates. Finally, self-reported and objectively measured PA associated differently with health outcomes. Summarily, although accelerometry has the advantage of being an accurate method, self-report questionnaires could provide valuable information about the context of the activity. MDPI 2021-03-24 /pmc/articles/PMC8038119/ /pubmed/33804834 http://dx.doi.org/10.3390/s21072258 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) ).
spellingShingle Article
Domingos, Célia
Correia Santos, Nadine
Pêgo, José Miguel
Association between Self-Reported and Accelerometer-Based Estimates of Physical Activity in Portuguese Older Adults
title Association between Self-Reported and Accelerometer-Based Estimates of Physical Activity in Portuguese Older Adults
title_full Association between Self-Reported and Accelerometer-Based Estimates of Physical Activity in Portuguese Older Adults
title_fullStr Association between Self-Reported and Accelerometer-Based Estimates of Physical Activity in Portuguese Older Adults
title_full_unstemmed Association between Self-Reported and Accelerometer-Based Estimates of Physical Activity in Portuguese Older Adults
title_short Association between Self-Reported and Accelerometer-Based Estimates of Physical Activity in Portuguese Older Adults
title_sort association between self-reported and accelerometer-based estimates of physical activity in portuguese older adults
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8038119/
https://www.ncbi.nlm.nih.gov/pubmed/33804834
http://dx.doi.org/10.3390/s21072258
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