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Youth physical activity and sedentary time and associations with cardiometabolic health
  1. Nicola D Ridgers
  1. Centre for Physical Activity and Nutrition Research, Deakin University, Burwood, Australia
  1. Correspondence to Nicola D Ridgers
    Centre for Physical Activity and Nutrition Research, Deakin University, 221 Burwood Highway, Burwood, VIC 3125, Australia; nicky.ridgers{at}

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Implication for practice and research

  • Increasing youth engagement in physical activity may have beneficial effects on cardiometabolic health outcomes.

  • Further research is needed to examine associations between objectively measured sedentary time and cardiometabolic health outcomes, adjusting for physical activity.


In recent years, there has been increasing interest in the effects of sedentary behaviour on children's health, defined as sitting behaviours that require low levels of energy expenditure (≤1.5 METs).1 There is some evidence that sedentary behaviours may be detrimental to children's health, though the majority of associations observed are derived from cross-sectional studies examining television viewing and adiposity.2 This study adds to the literature by examining cross-sectional and prospective associations between objectively measured moderate- to vigorous physical activity (MVPA) and …

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  • Competing interests Deakin University contributed data to the International Children's Accelerometry Database (ICAD), which was used as the data source for the study by Ekelund and colleagues, and is now an open data source for people working in this field of research. The data that Deakin University collected were not used in the statistical analyses in this paper. NDR had no involvement in the collection of the original data, and was not employed by Deakin University when the data were contributed to ICAD.