usainbolt What made this 4.22 so effortless ??? 🤯🤯🔥🔥🔥🤨——————————————————————————-The maximum speed an athlete can produce is dependent on how long PRODUCTIVE horizontal forces can be applied!!! —————————————————————————- Usain Bolt continued to maximize his HORIZONTAL forces in this 40. He made it look like an acceleration right? Well technically, that’s what it is if you can PUSH yourself for as long as possible. Posture: Look where his torso is through the entire run. He never comes fully upright because he’s learned to keep his center of mass far in front— causing forward rotations around the center of gravity. Arm action: drives DOWN AND BACK. Look how much the shoulder rotates to counterbalance the aggressive forward angle he’s in. Leg action: low heel recovery to high. Long ground contact to short. He creates forward momentum from an aggressive piston force in the beginning. Honestly my mind is blown from this and I had to go research WHY this is so productive and incr...