It showed that running training with intervals made the numbers of red muscle fiber increase 16.3%, intermediate muscle fiber decrease 10.1% and white muscle fiber decrease 6.1%;

结果：间歇跑训练使红肌纤维数增加16.3%，中间肌纤维数减少10.1%，白肌纤维数减少6.1%，白肌纤维和中间肌纤维平均直径增加显著，中间肌纤维上运动终板的平均直径增加显著；

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It showed that running training with intervals made the numbers of red muscle fiber increase 16.3%, intermediate muscle fiber decrease 10.1% and white muscle fiber decrease 6.1%;

结果：间歇跑训练使红肌纤维数增加16.3%，中间肌纤维数减少10.1%，白肌纤维数减少6.1%，白肌纤维和中间肌纤维平均直径增加显著，中间肌纤维上运动终板的平均直径增加显著；

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