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Individual Characteristics Associated with Mismatches between Self-Reported and Accelerometer-Measured Physical Activity

BACKGROUND: 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 amo...

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Autores principales: Tully, Mark A., Panter, Jenna, Ogilvie, David
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4053373/
https://www.ncbi.nlm.nih.gov/pubmed/24919185
http://dx.doi.org/10.1371/journal.pone.0099636
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author Tully, Mark A.
Panter, Jenna
Ogilvie, David
author_facet Tully, Mark A.
Panter, Jenna
Ogilvie, David
author_sort Tully, Mark A.
collection PubMed
description BACKGROUND: 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. METHODS: 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. RESULTS: 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). CONCLUSIONS: 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.
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spelling pubmed-40533732014-06-18 Individual Characteristics Associated with Mismatches between Self-Reported and Accelerometer-Measured Physical Activity Tully, Mark A. Panter, Jenna Ogilvie, David PLoS One Research Article BACKGROUND: 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. METHODS: 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. RESULTS: 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). CONCLUSIONS: 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. Public Library of Science 2014-06-11 /pmc/articles/PMC4053373/ /pubmed/24919185 http://dx.doi.org/10.1371/journal.pone.0099636 Text en © 2014 Tully et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Tully, Mark A.
Panter, Jenna
Ogilvie, David
Individual Characteristics Associated with Mismatches between Self-Reported and Accelerometer-Measured Physical Activity
title 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_short 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
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4053373/
https://www.ncbi.nlm.nih.gov/pubmed/24919185
http://dx.doi.org/10.1371/journal.pone.0099636
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