No really it's true... I thought is was BS at first but it's not. Yahoo sports ran a Grrrrrrrrrrrreat article about Usain Bolt and more so sprinting and running speed.  Usain Bolt: A Case Study in Science of Sprinting- Jay Hart    Hint: He's not fast because of "advanced training techniques" taught at the local "speed camp". Nor is it Under Armour 360 Combine training, HIT training, Crossfit or even 5/3/1.... Nope, not because of cones or parachutes, kettlebells, Bosu balls, bands or even chains......not even chains? Nope. It has more to do with Sir Issac Newton. Sprinting Speed= How much force exerted against ground and how long that … [Read more...]