Plyometric Exercise is a technique that includes specific exercises which encompasses a rapid strength of a muscle eccentrically, followed by a rapid concentric contraction of that muscle for the purpose of facilitating and developing a forceful explosive movement over a short period of time. Plyometric exercises involve hops, bounds and depth jumping for the lower extremity and the use of medicine balls and other types of weighted equipment for the upper extremity. Plyometrics places a great deal of stress on the musculoskeletal system. The learning and perfection of specific jumping skills and other plyometric exercises must be technically correct and specific to one´s age, activity and physical and skill development.
The incorporation of plyometric exericises and sport-specific activities, such as rebounding for basketball players or pass-blocking against resistance for offensive linemen in football, can be started.