训练组大鼠进行2周的递增负荷下坡跑跑台运动训练，最终进行一次大、中和小负荷的下坡跑运动。

Rats of training groups undertook a 2-week down hill running program with progressively increasing load, an exercise of heavy, moderate and light load of down hill running would be performed at last.

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训练组大鼠进行2周的递增负荷下坡跑跑台运动训练，最终进行一次大、中和小负荷的下坡跑运动。

Rats of training groups undertook a 2-week down hill running program with progressively increasing load, an exercise of heavy, moderate and light load of down hill running would be performed at last.

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