Individual characteristics associated with mismatches between self-reported and accelerometer-measured physical activity.

<h4>Background</h4>Accurate assessment tools are required for the surveillance of physical activity (PA) levels and the assessment of the effect of interventions. In addition, increasing awareness of PA is often used as the first step in pragmatic behavioural interventions, as discrepanc...

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Autores principales:	Mark A Tully, Jenna Panter, David Ogilvie
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5e577f28ac6e49b595103d73e48c5023
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spelling	oai:doaj.org-article:5e577f28ac6e49b595103d73e48c50232021-11-18T08:16:14ZIndividual characteristics associated with mismatches between self-reported and accelerometer-measured physical activity.1932-620310.1371/journal.pone.0099636https://doaj.org/article/5e577f28ac6e49b595103d73e48c50232014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24919185/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Accurate assessment tools are required for the surveillance of physical activity (PA) levels and the assessment of the effect of interventions. In addition, increasing awareness of PA is often used as the first step in pragmatic behavioural interventions, as discrepancies between the amount of activity an individual perceives they do and the amount actually undertaken may act as a barrier to change. Previous research has demonstrated differences in the amount of activity individuals report doing, compared to their level of physical activity when measured with an accelerometer. Understanding the characteristics of those whose PA level is ranked differently when measured with either self-report or accelerometry is important as it may inform the choice of instrument for future research. The aim of this project was to determine which individual characteristics are associated with differences between self-reported and accelerometer measured physical activity.<h4>Methods</h4>Participant data from the 2009 wave of the Commuting and Health in Cambridge study were used. Quartiles of self-reported and accelerometer-measured PA were derived by ranking each measure from lowest to highest. These quartiles were compared to determine whether individuals' physical activity was ranked higher by either method. Multinomial logistic regression models were used to investigate the individual characteristics associated with different categories of mismatch.<h4>Results</h4>Data from 486 participants (70% female) were included in the analysis. In adjusted analyses, the physical activity of overweight or obese individuals was significantly more likely to be ranked higher by self-report than by accelerometer than that of normal-weight individuals (OR = 2.07, 95%CI = 1.28-3.34), particularly among women (OR = 3.97, 95%CI = 2.11-7.47).<h4>Conclusions</h4>There was a greater likelihood of mismatch between self-reported and accelerometer measured physical activity levels in overweight or obese adults. Future studies in overweight or obese adults should consider employing both methods of measurement.Mark A TullyJenna PanterDavid OgilviePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 6, p e99636 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mark A Tully Jenna Panter David Ogilvie Individual characteristics associated with mismatches between self-reported and accelerometer-measured physical activity.
description	<h4>Background</h4>Accurate assessment tools are required for the surveillance of physical activity (PA) levels and the assessment of the effect of interventions. In addition, increasing awareness of PA is often used as the first step in pragmatic behavioural interventions, as discrepancies between the amount of activity an individual perceives they do and the amount actually undertaken may act as a barrier to change. Previous research has demonstrated differences in the amount of activity individuals report doing, compared to their level of physical activity when measured with an accelerometer. Understanding the characteristics of those whose PA level is ranked differently when measured with either self-report or accelerometry is important as it may inform the choice of instrument for future research. The aim of this project was to determine which individual characteristics are associated with differences between self-reported and accelerometer measured physical activity.<h4>Methods</h4>Participant data from the 2009 wave of the Commuting and Health in Cambridge study were used. Quartiles of self-reported and accelerometer-measured PA were derived by ranking each measure from lowest to highest. These quartiles were compared to determine whether individuals' physical activity was ranked higher by either method. Multinomial logistic regression models were used to investigate the individual characteristics associated with different categories of mismatch.<h4>Results</h4>Data from 486 participants (70% female) were included in the analysis. In adjusted analyses, the physical activity of overweight or obese individuals was significantly more likely to be ranked higher by self-report than by accelerometer than that of normal-weight individuals (OR = 2.07, 95%CI = 1.28-3.34), particularly among women (OR = 3.97, 95%CI = 2.11-7.47).<h4>Conclusions</h4>There was a greater likelihood of mismatch between self-reported and accelerometer measured physical activity levels in overweight or obese adults. Future studies in overweight or obese adults should consider employing both methods of measurement.
format	article
author	Mark A Tully Jenna Panter David Ogilvie
author_facet	Mark A Tully Jenna Panter David Ogilvie
author_sort	Mark A Tully
title	Individual characteristics associated with mismatches between self-reported and accelerometer-measured physical activity.
title_short	Individual characteristics associated with mismatches between self-reported and accelerometer-measured physical activity.
title_full	Individual characteristics associated with mismatches between self-reported and accelerometer-measured physical activity.
title_fullStr	Individual characteristics associated with mismatches between self-reported and accelerometer-measured physical activity.
title_full_unstemmed	Individual characteristics associated with mismatches between self-reported and accelerometer-measured physical activity.
title_sort	individual characteristics associated with mismatches between self-reported and accelerometer-measured physical activity.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/5e577f28ac6e49b595103d73e48c5023
work_keys_str_mv	AT markatully individualcharacteristicsassociatedwithmismatchesbetweenselfreportedandaccelerometermeasuredphysicalactivity AT jennapanter individualcharacteristicsassociatedwithmismatchesbetweenselfreportedandaccelerometermeasuredphysicalactivity AT davidogilvie individualcharacteristicsassociatedwithmismatchesbetweenselfreportedandaccelerometermeasuredphysicalactivity
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Individual characteristics associated with mismatches between self-reported and accelerometer-measured physical activity.

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