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Associations between prolonged sedentary time and breaks in sedentary time with cardiometabolic risk in 10–14-year-old children: The HAPPY study

Lookup NU author(s): Dr Sarah Charman, Dr Thomas Ploetz

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Abstract

© 2016 Informa UK Limited, trading as Taylor & Francis Group This study examines the association between prolonged sedentary time and breaks in sedentary time with cardiometabolic risk in 10–14-year-old children. This cross-sectional design study analysed accelerometry-determined sedentary behaviour and physical activity collected over 7 days from 111 (66 girls) UK schoolchildren. Objective outcome measures included waist circumference, fasting lipids, fasting glucose, blood pressure, and cardiorespiratory fitness. Logistic regression was used for the main data analysis. After adjustment for confounders, the odds of having hypertriglyceridaemia (P = 0.03) and an increased clustered cardiometabolic risk score (P = 0.05) were significantly higher in children who engaged in more prolonged sedentary bouts per day. The number of breaks in sedentary time per day was not associated with any cardiometabolic risk factor, but longer mean duration of daily breaks in sedentary time were associated with a lower odds of having abdominal adiposity (P = 0.04) and elevated diastolic blood pressure (P = 0.01). These associations may be mediated by engagement in light activity. This study provides evidence that avoiding periods of prolonged uninterrupted sedentary time may be important for reducing cardiometabolic disease risk in children.


Publication metadata

Author(s): Bailey DP, Charman SJ, Ploetz T, Savory LA, Kerr CJ

Publication type: Article

Publication status: Published

Journal: Journal of Sports Sciences

Year: 2017

Volume: 35

Issue: 22

Pages: 2164-2171

Online publication date: 28/11/2016

Acceptance date: 07/11/2016

ISSN (print): 0264-0414

ISSN (electronic): 1466-447X

Publisher: Routledge

URL: https://doi.org/10.1080/02640414.2016.1260150

DOI: 10.1080/02640414.2016.1260150


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