What Is Plyometrics? Power Training For Powerful Athletic Ability
What is Plyometrics?
New advances in science make it possible to run faster and jump higher than ever before.
Plyometrics is a form of exercise which links strength with speed of movement.
There are two phases of muscle contraction during the running or jumping motion. Muscles go
through a stretch (eccentric) phase and a contraction (concentric) phase.
Plyometric exercises are designed to shorten the cycle time between the two phases. A
rapid cycle time allows maximum energy transfer between stretch and contraction phases.
Here’s the process explained in further detail...
principle of plyometric training is the stretch-shortening cycle...
eccentric (stretching) movement is when weight is being “lowered”. When a muscle contracts eccentrically (lengthens while it contracts), it stretches to produce elastic
energy, which the muscle can store.
Immediately after the eccentric movement, if the muscle contracts concentrically (shortens while it contracts), the stored elastic energy is
released to produce greater force. A concentric movement is when the weight is being
vertical jump, an athlete will usually “dip down” a little bit right before jumping. This little “dip” is the
eccentric movement, and the actual jump is the “concentric” movement.
“eccentric” (stretching/lowering) contraction is absolutely necessary to generate maximum “concentric” (lifting)
So how do plyometrics help?
simply, plyometric exercises train your muscles to store more elastic energy during the eccentric
(lowering/stretching) phase. This is achieved by the rapid and intense jumps done in a typical plyometrics
is the muscle trained to store more elastic energy, but it is also trained to transfer this elastic
energy to the concentric movement much more rapidly. This is the key to generating maximum
exercises have to be done properly and with good knowledge, otherwise it can lead to overtraining and
injury. The results you can achieve by performing plyometric exercises correctly are truly amazing and
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