plyometrics

Plyometrics is a form of neuromuscular training, says Dallas-based chiropractor and strength and conditioning coach, Steve Horowtiz, D.C., CSCS, involving jumping, hopping, and landing which first lengthens and then shortens the muscle.

Plyometrics is an Eastern European name for jumping, popping, and throwing exercises which train an athlete's nervous system to become more explosive.  For young athletes, says strength and conditioning trainer and coach Mike Boyle, a little bit of plyometrics is good (around 25 to 30 jumps a couple times a week); more not so much.