Maternal leisure time physical activity and infant birth size.

产妇闲暇时间体力活动与婴儿出生大小。

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Physical activity takes too much time!

身体活动需要太多的时间！

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The negative impact of screen time was not remedied by increasing a child's physical activity levels.

加强体育锻炼并不能抵消长时间面对屏幕带来的负面影响。

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"We can say that 50 percent of the burden of obesitycan be contributed by having no leisure time physical activity."

VOA: standard.2010.08.10

The federal government is encouraging schools to make more time so children can participate in physical activity.

VOA: standard.2010.03.09

In fact, occupational sitting time is where the epidemiology of physical activity first began, writes one researcher in the British Journal of Sports Medicine.

CNN: Sitting for hours can shave years off life

To provide children with a healthier start, local elected officials commit to helping early care and education program providers incorporate best practices for nutrition, physical activity and screen time into their programs.

WHITEHOUSE: The White House

To date approximately 2, 000 child care professionals and organizations have registered online to implement new criteria for nutrition, physical activity and limiting screen time.

WHITEHOUSE: Our Top Stories