If there's one lesson from the USA Track and Field study, said Dr. Pereles, it is that "sudden changes are probably not a good idea."

皮若勒博士说：从美国田径研究结果能推得的一个教训就是，做任何突然的改变，可能都不是什么好主意。

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So is the primary takeaway of the USA Track and Field study that, whatever you're doing now in terms of stretching or not stretching, don't stop?

那么这是美国田联的研究是不是主要就说明，无论你现在是拉伸还是不拉伸，请继续保持原状？

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One anomalous finding of the USA Track and Field study was that runners who were used to stretching and were assigned to the nonstretching group became injured at a disproportionately high rate.

美国田联的研究还发现了一个怪现象: 被分到跑前不拉伸的小组里的, 而之前有跑前拉伸习惯的, 非常容易受伤, 比例很高.

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