EDKP 495 Lecture Notes - Lecture 10: Joint Stability, Wicket-Keeper, Plyometrics
23 Feb 2017
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Document Summary
Plyometrics = training for speed / power / agility. Enhances ability of muscle-tendon unit to produce maximal force in shortest amount of time. + uses body weight as integral part of. Muscular force developed in as short period of time as possible. Increased power production = a) mechanical & b) neurophysiological: mechanical model. If concentric component does not immediately follow or if eccentric component too long. *stored elastic recoil force energy dissipates & lost as heat so need to be well-controlled mvmt: neurophysiological model. During plyometrics = muscle spindles are stimulated by. Rapid muscle stretch reflex response increase muscle. *motor neuron process act on antagonist muscle & contract or act on agonist muscle to stop. If too much time between eccentric & concentric or if eccentric component too long. *potentiating ability of stretch reflex lost = rate of stretch in plyometrics important. Ex: if too slow not effective/ if too fast no control in movement injury.
