Even More plyometrics?

Technique of jumping is also very important when executing plyometric exercises. In essence, the athlete goes into a slight squat (crouch) upon landing in which there is flexion in the hip, knee and ankle joints. In the takeoff or jump upward, the jump is executed in a sequence initiated by hip joint extension followed by knee joint extension which begins during the hip joint extension. As the knee joint extension is taking place, ankle joint extension begins and is the only action that occurs as the takeoff (breaking contact with the ground) takes place. All three actions contribute force to the upward jump but the knee joint extension is the major contributor.[22]

Dr. Chu is the reason for all of this information on plyometrics?

The term plyometrics was coined by Fred Wilt after watching Soviet athletes prepare for their event in track and field. He felt this was a key to their success.[3] It is a poor term to describe what happens[citation needed] but it has since been accepted and is now well established. When Wilt learned of the work being done by Michael Yessis on Soviet (Russia) training methods, they quickly collaborated to help disseminate information on plyometrics.