Effectiveness of intervention on physical activity of children: systematic review and meta-analysis of controlled trials with objectively measured outcomes (EarlyBird 54)

摘要

STUDY QUESTION How effective are physical activity interventions at increasing the activity of children?SUMMARY ANSWER Physical activity interventions achieve a small to negligible increase in total activity, with a small improvement in the time spent at moderate or vigorous intensities amounting to around four more minutes walking or running per day.WHAT IS KNOWN AND WHATTHIS PAPER ADDSPhysical activity interventions have little effect on the prevention of childhood obesity, but the reasons for this have been unclear. The finding that physical activity interventions have little effect on the overall activity of children provides one explanation.