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dc.contributor.authorDowd, Kieran P.
dc.contributor.authorPurtill, Helen
dc.contributor.authorHarrington, Deirdre M.
dc.contributor.authorHislop, Jane
dc.contributor.authorReilly, John J.
dc.contributor.authorDonnelly, Alan E.
dc.date.accessioned2018-06-29T21:45:11Z
dc.date.available2018-06-29T21:45:11Z
dc.date.issued2017-01-25
dc.identifierER4667
dc.identifier.citationDowd, K., Purtill, H., Harrington, D., Hislop, J., Reilly, J. & Donnelly, A. (2017) Minimum Wear Duration for the activPALTM Professional Activity Monitor in Adolescent Females, Pediatric Exercise Science, vol. 29, , pp. 427-433,
dc.identifier.issn0899-8493
dc.identifier.urihttp://dx.doi.org/10.1123/pes.2016-0188
dc.identifier.urihttps://eresearch.qmu.ac.uk/handle/20.500.12289/4667
dc.description.abstractObjectives: This study aims to determine the minimum number of days of monitoring required to reliably predict sitting/lying time, standing time, light intensity physical activity (LIPA), moderate-to-vigorous intensity physical activity (MVPA) and steps in adolescent females. Methods: 195 adolescent females (mean age=15.7 years; SD=0.9) participated in the study. Participants wore the activPAL activity monitor for a seven day protocol. The amount of time spent sitting/lying, standing, in LIPA and in MVPA and the number of steps per day were quantified. Spearman-Brown Prophecy formulae were used to predict the number of days of data required to achieve an intraclass correlation coefficient of both 0.7 and 0.8. Results: For the percentage of the waking day spent sitting/lying, standing, in LIPA and in MVPA, a minimum of 9 days of accelerometer recording is required to achieve a reliability of ≥0.7, while a minimum of 15 days is required to achieve a reliability of ≥0.8. For steps, a minimum of 12 days of recording is required to achieve a reliability of ≥0.7, with 21 days to achieve a reliability of ≥0.8. Conclusions: Future research in adolescent females should collect a minimum of 9 days of accelerometer data to reliably estimate sitting/lying time, standing time, LIPA and MVPA, while 12 days is required to reliably estimate steps.
dc.format.extent427-433
dc.publisherHuman Kinetics
dc.relation.ispartofPediatric Exercise Science
dc.subjectActivpal
dc.subjectMinimum
dc.subjectAdolescent
dc.subjectWear Time
dc.subjectPhysical Activity
dc.subjectSedentary Behaviour
dc.titleMinimum Wear Duration for the activPALTM Professional Activity Monitor in Adolescent Females
dc.typearticle
dcterms.accessRightspublic
dc.description.facultysch_phy
dc.description.volume29
dc.identifier.doihttp://10.1123/pes.2016-0188
dc.description.ispublishedpub
dc.description.eprintid4667
rioxxterms.typearticle
refterms.dateAccepted2016-12-12
refterms.dateFCA2017-02-20
refterms.dateFCD2017-02-20
qmu.authorHislop, Jane
qmu.centreCentre for Health, Activity and Rehabilitation Research
dc.description.statuspub
dc.description.number3


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