Criterion and concurrent validity of the activPAL™ professional physical activity monitor in adolescent females.

<h4>Background</h4>The activPAL has been identified as an accurate and reliable measure of sedentary behaviour. However, only limited information is available on the accuracy of the activPAL activity count function as a measure of physical activity, while no unit calibration of the activ...

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Autores principales:	Kieran P Dowd, Deirdre M Harrington, Alan E Donnelly
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6f294851e831421c98b2799ecfd1bd9f
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spelling	oai:doaj.org-article:6f294851e831421c98b2799ecfd1bd9f2021-11-18T08:11:29ZCriterion and concurrent validity of the activPAL™ professional physical activity monitor in adolescent females.1932-620310.1371/journal.pone.0047633https://doaj.org/article/6f294851e831421c98b2799ecfd1bd9f2012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23094069/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>The activPAL has been identified as an accurate and reliable measure of sedentary behaviour. However, only limited information is available on the accuracy of the activPAL activity count function as a measure of physical activity, while no unit calibration of the activPAL has been completed to date. This study aimed to investigate the criterion validity of the activPAL, examine the concurrent validity of the activPAL, and perform and validate a value calibration of the activPAL in an adolescent female population. The performance of the activPAL in estimating posture was also compared with sedentary thresholds used with the ActiGraph accelerometer.<h4>Methodologies</h4>Thirty adolescent females (15 developmental; 15 cross-validation) aged 15-18 years performed 5 activities while wearing the activPAL, ActiGraph GT3X, and the Cosmed K4B2. A random coefficient statistics model examined the relationship between metabolic equivalent (MET) values and activPAL counts. Receiver operating characteristic analysis was used to determine activity thresholds and for cross-validation. The random coefficient statistics model showed a concordance correlation coefficient of 0.93 (standard error of the estimate = 1.13). An optimal moderate threshold of 2997 was determined using mixed regression, while an optimal vigorous threshold of 8229 was determined using receiver operating statistics. The activPAL count function demonstrated very high concurrent validity (r = 0.96, p<0.01) with the ActiGraph count function. Levels of agreement for sitting, standing, and stepping between direct observation and the activPAL and ActiGraph were 100%, 98.1%, 99.2% and 100%, 0%, 100%, respectively.<h4>Conclusions</h4>These findings suggest that the activPAL is a valid, objective measurement tool that can be used for both the measurement of physical activity and sedentary behaviours in an adolescent female population.Kieran P DowdDeirdre M HarringtonAlan E DonnellyPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 10, p e47633 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kieran P Dowd Deirdre M Harrington Alan E Donnelly Criterion and concurrent validity of the activPAL™ professional physical activity monitor in adolescent females.
description	<h4>Background</h4>The activPAL has been identified as an accurate and reliable measure of sedentary behaviour. However, only limited information is available on the accuracy of the activPAL activity count function as a measure of physical activity, while no unit calibration of the activPAL has been completed to date. This study aimed to investigate the criterion validity of the activPAL, examine the concurrent validity of the activPAL, and perform and validate a value calibration of the activPAL in an adolescent female population. The performance of the activPAL in estimating posture was also compared with sedentary thresholds used with the ActiGraph accelerometer.<h4>Methodologies</h4>Thirty adolescent females (15 developmental; 15 cross-validation) aged 15-18 years performed 5 activities while wearing the activPAL, ActiGraph GT3X, and the Cosmed K4B2. A random coefficient statistics model examined the relationship between metabolic equivalent (MET) values and activPAL counts. Receiver operating characteristic analysis was used to determine activity thresholds and for cross-validation. The random coefficient statistics model showed a concordance correlation coefficient of 0.93 (standard error of the estimate = 1.13). An optimal moderate threshold of 2997 was determined using mixed regression, while an optimal vigorous threshold of 8229 was determined using receiver operating statistics. The activPAL count function demonstrated very high concurrent validity (r = 0.96, p<0.01) with the ActiGraph count function. Levels of agreement for sitting, standing, and stepping between direct observation and the activPAL and ActiGraph were 100%, 98.1%, 99.2% and 100%, 0%, 100%, respectively.<h4>Conclusions</h4>These findings suggest that the activPAL is a valid, objective measurement tool that can be used for both the measurement of physical activity and sedentary behaviours in an adolescent female population.
format	article
author	Kieran P Dowd Deirdre M Harrington Alan E Donnelly
author_facet	Kieran P Dowd Deirdre M Harrington Alan E Donnelly
author_sort	Kieran P Dowd
title	Criterion and concurrent validity of the activPAL™ professional physical activity monitor in adolescent females.
title_short	Criterion and concurrent validity of the activPAL™ professional physical activity monitor in adolescent females.
title_full	Criterion and concurrent validity of the activPAL™ professional physical activity monitor in adolescent females.
title_fullStr	Criterion and concurrent validity of the activPAL™ professional physical activity monitor in adolescent females.
title_full_unstemmed	Criterion and concurrent validity of the activPAL™ professional physical activity monitor in adolescent females.
title_sort	criterion and concurrent validity of the activpal™ professional physical activity monitor in adolescent females.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/6f294851e831421c98b2799ecfd1bd9f
work_keys_str_mv	AT kieranpdowd criterionandconcurrentvalidityoftheactivpalprofessionalphysicalactivitymonitorinadolescentfemales AT deirdremharrington criterionandconcurrentvalidityoftheactivpalprofessionalphysicalactivitymonitorinadolescentfemales AT alanedonnelly criterionandconcurrentvalidityoftheactivpalprofessionalphysicalactivitymonitorinadolescentfemales
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Criterion and concurrent validity of the activPAL™ professional physical activity monitor in adolescent females.

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