In the study of sports science, in order to make full use of sports, improve physical fitness and athletic performance, we can follow several recognized scientific sports training principles. These rules apply to all athletes, from beginners to elite athletes. We don't have to follow every one of them all the time, but if we want to stay in better shape, improve our athletic performance, do better on a particular fitness rule, or avoid stasis and slip, these basic rules are the hidden forces behind our ability to change fitness standards.
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