Abstract:Background
Physical activity (PA) is an important factor contributing to general health. PA declines rapidly during tween years (9-12 years) when children's social world changes. During tween years, children's self-consciousness develops and their focus on social status, friendships, and appearance increase. It is therefore important to consider how to motivate tween's to be physically active. School playgrounds can contribute substantially to children's PA and are considered key contexts for… Show more
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