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de Vries, S.I. (author), Hopman-Rock, M. (author), Bakker, I. (author), van Mechelen, W. (author), TNO Kwaliteit van Leven (author)Purpose: To investigate the effect of guideline operationalization in terms of intensity threshold, bout duration, and days on the proportion of children meeting the health-related 60-min physical activity guideline using a subjective and an objective assessment method. Methods: Five hundred and twenty-one children (6-11 yr) completed a physical...article 2009
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Broekhuizen, K. (author), Scholten, A.M. (author), de Vries, S.I. (author)The (pre)school environment is an important setting to improve children's health. Especially, the (pre)school playground provides a major opportunity to intervene. This review presents an overview of the existing evidence on the value of both school and preschool playgrounds on children's health in terms of physical activity, cognitive and...article 2014