True-Explosive Plyometrics
Nowadays we’ll call anything that involves jumping plyometrics. It’s become the term for jumping exercises, but simply jumping isn’t exactly what plyometrics were meant to be. Plyometrics were specific types of exercises that involved a fall, which created a shock, which lead to a quick recoil (eccentric contraction of the muscles), and an almost immediate rebound (concentric contraction of the muscles) or jump. The quicker the jump the better. It is the quick turn around from eccentric contraction to concentric contraction that makes something a True or Explosive Plyometric.