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Prospective Associations Between Objective Measures Of Physical Activity And Fat Mass In 12-14 Year Old Children: The Avon Longitudinal Study Of Parents And Children (Alspac), Chris J. Riddoch, Sam D. Leary, Andy R. Ness, Steven N. Blair, Kevin Deere, Calum Mattocks, Alex Griffiths, George Davey Smith, Kate Tilling
Prospective Associations Between Objective Measures Of Physical Activity And Fat Mass In 12-14 Year Old Children: The Avon Longitudinal Study Of Parents And Children (Alspac), Chris J. Riddoch, Sam D. Leary, Andy R. Ness, Steven N. Blair, Kevin Deere, Calum Mattocks, Alex Griffiths, George Davey Smith, Kate Tilling
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Objective: To investigate associations between physical activity at age 12 and subsequent adiposity at age 14.
Design: Prospective birth cohort study with data collected between 2003 and 2007.
Setting: Original recruitment in 1991-2 of 14,541 pregnant women living in the former County of Avon (United Kingdom).
Participants: At age 12, 11,952 children were invited to attend the research clinic. Of these, 7159 attended, and 4150 (1964 boys, 2186 girls) provided sufficient data on exposure, outcome, and confounding variables.
Main outcome measure: Fat mass at age 14, measured by dual emission x ray absorptiometry, associated with physical activity at age 12, …