Compliance of Adolescent Girls to Repeated Deployments of Wrist-Worn Accelerometers

Medicine and Science in Sports and Exercise
Alex V RowlandsCharlotte L Edwardson

Abstract

This study aimed to determine the cross-sectional and cumulative compliance of adolescent girls to accelerometer wear at three deployment points and to identify variables associated with compliance. Girls from 20 secondary schools were recruited: 10 schools were participating in the "Girls Active" intervention and 10 were control schools. Physical activity was measured using the GENEActiv accelerometer worn on the nondominant wrist 24 h·d for up to 7 d at baseline, 7 months, and 14 months. Demographic and anthropometric characteristics were recorded. Seven valid days (≥16 h) of accelerometer wear was obtained from 83%, 77%, and 68% of girls at baseline (n = 1734), 7 months (n = 1381), and 14 months (n = 1326), respectively. Sixty-eight percent provided 7 valid days for both baseline and 7 months, 59% for baseline and 14 months, and 52% for all three deployment points. Estimates of physical activity level from 3 d of measurement could be considered equivalent to a 7-d measure (i.e., they fell within a ±5% equivalence zone). Cross sectionally, 3 valid days was obtained from at least 91% of girls; cumulatively, this was obtained from ≥88% of girls across any two deployment points and 84% of girls across all three deployment points...Continue Reading

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Citations

Aug 17, 2018·Physiological Measurement·Cain C T ClarkRobert Podstawski
Apr 20, 2019·Journal of Sports Sciences·Robert J NoonanStuart J Fairclough
Jul 17, 2019·Journal of Physical Activity & Health·Sarah G SandersAlberta S Kong
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Aug 18, 2020·American Journal of Obstetrics and Gynecology·Ingrid E NygaardJanet M Shaw

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