The following guest post from Al Kavadlo & Danny Kavadlo is adapted from their book STREET WORKOUT and is published with permission from Dragon Door Publications. Enjoy!
In the beginning, we crawled. We hunted. We climbed. We played. We did a lot of things. Early man used his arms, legs and entire body every time he pulled himself up a tree to pick fruit or hoisted up a mammoth carcass for the weekly feast. He didn’t isolate body parts when he fought to survive. He didn’t jump or sprint because it was “leg day.” He did it because a saber-toothed tiger was gonna rip him apart if he didn’t.