Forces on the feet?

Quote from Speed Trap…

“Biomechanical analysis had shown that a sprinter generate seven times as much power at the hip as at the ankle.”

My question is… How much force is placed on the feet at landing w/ each step?

Kenny Mac~~

There is a great article in the Jounal of Biomechanics 1991 on leg action. It stated that if the lower parts of the leg were activated while the hips were active, that it take away from the transmission of force at the hip. From a kinematic standpoint, you have a driver, a coupler, and a follower. Each has a role to play but if the roles get confused, then effiency is sacrificed. Neither the knees nor the ankles are not designed to bear the brunt of the push off, the hips were.