The short rest periods create a high level of fatigue, stimulate favorable hormone release and promote significant tissue breakdown, this is what one needs to stimulate the type of growth we are looking for. The longer rest periods are necessary to develop significant high level strength as the nervous system requires 2-5 min to recover between efforts of this type. This can be both time consuming and a bit boring compared to a quick and dirty CrossFit style WOD but it is necessary to become both big and strong.
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