Rapid rate of contraction and relaxation in punch or kick

Aquí comparto otro muy interesante artículo, de los denominados «estudios complementarios». Está relacionado con el artículo anterior. Detalla la importancia de la contracción y relajación. Como vimos en los ejercicios de ayer, si no tenemos el control de nuestro centro, no podemos contraer y relajar los músculos de forma correcta, para entrar o esquivar un ataque. Es fundamental tener una correcta postura, iniciar la generación de energía desde los pies y no tensionar ninguna parte de nuestro cuerpo, ya que si eso sucede, no vamos a poder controlar nuestro tanden para ejecutar cualquier movimiento.

Para estudiar y entrenar!.

Buena lectura!.

The skillful karate fighter is not only strong, but in order to initiate a punch or a kick can contract muscles with great velocity, and also relax rapidly, the rate of relaxation is very rapid. The karate expert must start power generation in the legs through the hips, and as they hips explode the core contract quickly to transmit the force to the upper body, initial pulse start with quick contraction, and than the core relax as the punch or kick increase the velocity until the impact and than to avoid energy leak a second contraction occur.

Initiate with very quick muscle contraction and a very rapid muscles relaxation to allow speed increase, and a second sharp pulse of muscles contraction to deliver the full power.

One must do this using the big muscles of the hips through the shoulders for power generation, while keeping the spine stable, to allow full transmission of power, (power is not generated at the spine) to avoid stress on spine and to allow the spine to be an anchor for the bigger muscles to be fully utilized.

Therefore the sequence of contraction is as important as the rate of contraction.
Smaller, inner stabilizer muscles contract first, than the bigger force production muscles.

Source: https://rokahkarate.com/rapid-rate-of-contraction-and-relaxation-in-punch-or-kick/

Author: Avi Rokah Sensei

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