Changes in Physical Activity over Time in Young Children: A Longitudinal Study Using Accelerometers


Previous research has suggested that marked declines in physical activity occur during the preschool years, and across the transition into school. However, longitudinal studies using objective measures of activity have been limited by sample size and length of follow-up. The aims of this study were to determine how overall activity and time in different… (More)
DOI: 10.1371/journal.pone.0081567

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