Over the years, the plyometrics has had many definitions and interpretations depending on whether one explains plyometrics, classical plyometrics or modem plyometrics. As loaded or explosive eccentric muscle action with no reversible, e.g. connection, muscle actions are used, plyometric exercise translates into ‘more duration’ for example, landing from a jump involves yielding or high eccentric landing where impact forces can surpass the propulsive forces produced during a jump The landing is plyometric where the athlete brace for support (by controlling the degree of hip , knee and ankle flexion) but does not proceed with a focus or propulsion process , e.g. preforming an exercise called a depth landing.