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【名解】超等长运动Plyometric Exercise
时间:2010/12/22 22:27:38

肌肉在离心(拉长)收缩之后紧接着进行向心(缩短)收缩的力量练习称为超等长练习,比较典型的是"跳深",即从高处跳下再向上跳起的动作,此时的股四头肌、臀大肌、小腿三头肌等在落地时做离心收缩,向上跳起时做向心收缩.

超等长收缩(plyometric)是希腊的复合语,由Plio=更大。和Metric=测量值;两个词组成,原意为增加测量值,超等长收缩(plyometric)的定义是:利用预先拉长肌肉或先反向运动而实现快速、有力的运动效果。这种运动包括了一个拉长——短缩(收缩)周期(SSC,Streth—Shortening Cycle)。拉长收缩(超等长)的目的是利用肌肉和肌腱的弹性成分以及拉伸反射作用,使接着进行的运动更加有力。

Plyometrics

"Plyometric Exercise refers to those activities that enable a muscle to reach Maximal Force in the shortest possible time. Plyometrics is a combination of Greek words that literally means to increase measurement (plio=more; metric=to measure).

"A practical definition of plyometric exercise is a quick, powerful movement using a prestretch or countermovement, that involves the Stretch-Shortening Cycle (SSC)." (Baechle and Earle., Essential of Strength Training and Conditioning)

引自:http://www.eitathletics.com/plyometrics.php

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