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OBJECTIVE To investigate the relation of classroom physical activity breaks to students' physical activity and classroom behavior. METHODS Six elementary-school districts in California implemented… (More)
BACKGROUND AND OBJECTIVES The majority of youth are not meeting the US Department of Health and Human Services physical activity guidelines. Dance is a popular activity, particularly for girls, and… (More)
PURPOSE The study aims were to determine: (a) how class structure varies by dance type, (b) how moderate-to-vigorous physical activity (MVPA) and sedentary behavior vary by dance class segments, and… (More)
Brief structured physical activity in the classroom is effective for increasing student physical activity. The present study investigated the association between implementation-related contextual… (More)
PURPOSE The present study examined various accelerometer nonwear definitions and their impact on detection of sedentary time using different ActiGraph models, filters, and axes. METHODS In total,… (More)
Children and adolescents gain more weight in the summer than the school year, and there are race/ethnic differences in this pattern. Youth physical activity is lower in the summer, and the main aim… (More)