Physical activity has a protective effect against cardiovascular disease (CVD) in high-income countries, where physical activity is mainly recreational, but it is not known if this is also observed in lower-income countries, where physical activity is mainly non-recreational. We examined whether different amounts and types of physical activity are associated with lower mortality and CVD in countries at different economic levels.

中文翻译：

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PURE研究显示，体育锻炼对来自17个高收入，中等收入和低收入国家的13万人的死亡率和心血管疾病的影响：

在高收入国家，体育活动对体育活动具有保护作用，而高收入国家的体育活动主要是娱乐性活动，但在低收入国家，体育活动主要是非娱乐活动的低收入国家是否也观察到这种作用。我们研究了在不同经济水平的国家中，不同数量和类型的体育活动是否与较低的死亡率和心血管疾病有关。