Inactive people should start with small amounts of physical activity and gradually increase duration, frequency and intensity over time.

缺乏活动的人在开始时应做少量的身体活动，并随时间逐步增加活动时间、频率和强度。

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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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Participants were asked how often they engaged in both light and intense physical activity during their leisure time. People were also asked how physically active they were at work.

接受测试人员者需回答他们在休闲时间参加轻、重体力活动的频繁程度，以及工作时的体力劳动强度。

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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

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

As of January of 2013, more than 10, 000 child care professionals and organizations have registered to implement new criteria for nutrition, physical activity, and limited screen time.

WHITEHOUSE: Our Top Stories