Development of an Accelerometer-Linked Online Intervention System to Promote Physical Activity in Adolescents

Nicole Guthrie, Andrew Bradlyn, Sharon K Thompson, Sophia Yen, Jana Haritatos, Fred Dillon and Steve W Cole

PLOS ONE, 2015, vol. 10, issue 5, 1-15

Abstract: Most adolescents do not achieve the recommended levels of moderate-to-vigorous physical activity (MVPA), placing them at increased risk for a diverse array of chronic diseases in adulthood. There is a great need for scalable and effective interventions that can increase MVPA in adolescents. Here we report the results of a measurement validation study and a preliminary proof-of-concept experiment testing the impact of Zamzee, an accelerometer-linked online intervention system that combines proximal performance feedback and incentive motivation features to promote MVPA. In a calibration study that parametrically varied levels of physical activity in 31 12-14 year-old children, the Zamzee activity meter was shown to provide a valid measure of MVPA (sensitivity in detecting MVPA = 85.9%, specificity = 97.5%, and r = .94 correspondence with the benchmark RT3 accelerometer system; all p

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0128639

DOI: 10.1371/journal.pone.0128639

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