但是在这个过程中，心脏出现了适应性改变：左、右心室扩大，从形态上开始与那些非运动员的心脏有了很大差异。

But in the process, the heart ADAPTS and changes. Its left and right ventricles enlarge. It begins to look quite different than a non-athlete's heart.

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旨在使田径运动员的训练适应新赛制的要求，培养运动员对比赛的适应性、形成和持续保持良好的竞技状态，提高田径运动训练的整体效果。

It aims to let the track man adapt new match system, cultivate whose adaptability, keep being on whose game, improve the whole effect of track and Field training.

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西昌属亚高原地带，赛道平均海拔1500米，请参赛运动员赛前做好适应性准备。

Xichang is sub-plateau, the average altitude is 1500meters, adaptability preparation is necessary.

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