Plyometric training, when used with a periodized strength-training
program, can contribute to improvements in vertical jump performance,
acceleration, leg strength, muscular power, increased joint awareness,
and overall proprioception. Plyometric drills usually involve stopping,
starting, and changing directions in an explosive manner. These
movements can assist in the development of agility, speed, aerobic
capacity and explosive strength. Several studies have been confirmed the
role of elastic energy in human movements. Today, Plyometric training is
often used by coaches in many exercise programs as stated, because of
the special features of sports such as weight drop and sprint running,
the power factor, is of great importance. Hence, it is useful to
evaluate its components. Although Plyometric training has been shown to
increase performance variables, little scientific information is
available to determine if plyometric training actually enhances agility,
speed, aerobic capacity and explosive strength. Plyometric is a natural
part of most of the movements, evidenced knee injuries, and running
economy.