EXTRA-GRAVITATIONAL-PROPULSION FOR RUNNING SPEED. THE LEG SLANTS BEHIND THE VERTICAL UPPER BODY AND GRAVITY PULLS THE BODY DOWN AHEAD OF THE FOOT. THE BODY DOESN’T GO DOWN BECAUSE OF THE JUMP SO GRAVITY PULLS YOU FORWARD INSTEAD OF DOWN. EVERYONE SEES THE BODY AHEAD OF THE FOOT FOR PART OF THE GROUND TIME. THAT PART IS WHERE MOMENTUM AND GRAVITY MAKES YOUR STANDING TIME OFF BALANCE. YOU RUN FASTER BY BEING MORE OFF BALANCE.
Coaches teach the following bad techniques
Push back harder at the ground to run faster. It is impossible to do. You would have to flex the leg at the same time it is extending to toss you up. Extending the leg pulls the lower leg forward while you roll forward on the foot. Push harder down into the ground to run faster. Doing that would make you jump too high and over stride. Air time is slowdown time at any height. Keep the jump as low as possible. Push at one angle head to toe. It is impossible to do, because the leg changes angles too fast. It would take a hundred angles to jump. Land on the toes. Toe landing is murder on the calf muscles for distance running because of the leverage against the foot at a right angle to the leg. It is necessary for sprinting short distances because rolling on the foot slows the time you need to get off the ground at a sprint speed. Landing on the toes does not change your angle for speed. You can hop in place while landing on your toes as well as run slowly that way. Get the right combination of stride length and stride frequency. It is both impossible to measure and it doesn’t get you to move forward. You need to do the falling technique to run. Tilt the upper body forward to add speed. Tilting the upper body forward has absolutely no effect on changing your speed except for the first step in a sprint to shift the body ahead. The upper body realigns itself by shifting the bottom behind the foot so the center of balance doesn’t shift. You can see this when you stand in place with a tilted upper body. Lift the knee high with foot over opposite knee then drive the foot down hard. The lift should be kept as low as possible to exchange the feet faster. The concentration should be on bringing the foot forward fast, not on the knee lifting high. Driving the foot down hard makes a hard impact. You can bring the knee and foot high and drive down while hopping in place. That action does not move you forward at all.