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

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dc.contributor.author Dowd, Kieran P.
dc.contributor.author Harrington, Deirdre M.
dc.contributor.author Donnelly, Alan Edward
dc.date.accessioned 2015-04-22T11:33:25Z
dc.date.available 2015-04-22T11:33:25Z
dc.date.issued 2012
dc.identifier.uri http://hdl.handle.net/10344/4430
dc.description peer-reviewed en_US
dc.description.abstract Background: 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.Methodologies: 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 en_US
dc.language.iso eng en_US
dc.publisher BioMed Central en_US
dc.relation.ispartofseries PLOS One;7 (10) e47633
dc.subject sedentary behavior en_US
dc.subject accelerometer output en_US
dc.subject wearable monitors en_US
dc.subject children en_US
dc.title Criterion and concurrent validity of the activPAL (TM) professional physical activity monitor in adolescent females en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.date.updated 2015-04-22T11:22:51Z
dc.description.version PUBLISHED
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 1414449
dc.internal.copyrightchecked Yes
dc.description.status peer-reviewed


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