The study, published in the journal Jama Network Open, was based on data from more than 300,000 Americans aged 50-71 who undertook a questionnaire in the mid-1990s. They were asked to estimate the extent of their moderate to vigorous leisure exercise at different stages of their life. Researchers then used national records to track who died in the years up to the end of 2011.

发表在《美国医学会杂志》Network Open上的这篇研究的基础源于1990年中期30多万名参与问卷调查的50至71岁的美国人的数据。受试者被要求预估在生命中的不同阶段所进行的休闲运动的程度：适度-剧烈。之后，研究员利用国内记录来追踪截至2011年底的死亡受试者人数。

After taking into account factors including age, sex, smoking and diet, the team found that those who were exercising into middle age had a lower risk of death from any cause in the years that followed than those who had never carried out any leisure exercise. However, when the team looked at 10 different patterns in the way people were active over their life, it found a surprise.

考虑了年龄、性别、吸烟和节食等因素后，该研究团队发现：相比从未健身的受试者而言，在中年阶段保持运动的受试者在这些年内的死亡率更低（无论死于何种原因）。然而，当研究团队研究了人们保持活跃的10种不同的模式时，他们发现了惊喜。

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