After same training load, the swimmers with better performance and recovery of heart rate may indicate the good physical conditioning.

相同负荷训练后运动员成绩越好、恢复心率越快，则表明运动员机能状况越佳；

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Therefore, muscle strength training for athletes is a crucial role in the improvement of sports performance. Load impact the effect of training directly.

因此肌肉力量的训练对于运动员成绩的提高具有至关重要的作用，而训练过程中负荷的大小直接影响着训练的效果。

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