Top ranked US 60M sprinter Marvin Bracy and coach Sean Pena demonstrate the revolutionary V8 training system designed to increase top end speed and acceleration. The V8 system is the only resisted sprint training system capable of loading the “Drive Phase“ and “Recovery Phase“ simultaneously for optimal high velocity power development in all muscles groups that drive the sprinter when their drive leg is planted on the ground AND when their foot breaks contact with the ground enterin
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6 years ago 00:14:11 153
Соревнования по прыжкам: Екатеринбург, Новосибирск, Москва. Ответы на частые вопросы.