Texte de Avi Rokah Sensei, 2e partie
Il y avait de l’énergie au dojo hier soir. Nous avons encore travaillé la fluidité du déplacement avec une emphase particulière sur l’utilisation des ischio-jambiers et des adducteurs pour garder le déplacement en contrôle et améliorer la vitesse d’exécution. Tous ces concepts appliqués ensuite en kata. Finalement, nous avons répété quelques enchaînements de kumite: Kizami-zuki / gyaku-kuki, mawashi-geri gedan et chudan, ashi-barai, etc.
On se revoit sur le tatami ce soir pour l’entraînement du curriculum technique. En attendant… bonne journée :) !!
L’article d’hier traitait des principes essentiels pour maximiser l’impact en karaté. Voici la deuxième partie qui traite maintenant des différentes phases:
Maximizing impact Phases
Quick start without back motion
Move from small diameter of spine, not from hips. If the spine is 1/5 of the diameter of the hips, speed can increase fife times, use breathing to control spinal muscles. Muscle reaction, internal preparation, loading by reverse exhale to exhale as trigger. Exhale back draw the abdomen toward the back to create pressure to back (sacrum is base) and to floor, change exhale direction sharply to trigger technique.
Muchimi – body like whip, acceleration
Total body is whip, sacrum is the handle of the whip, snap starts from center, and transfer to contact area, therefore strong intention to contact area. At time of snap squeeze toward the spine to prevent bounce and leak of energy. Distinguish between snap at Tsuki and Uchi techniques. Snap can be expressed through the forearm at the elbow joint or at the wrist, in any case at snap elbow should not move so it can serve as action center, and contact area should be firm, put ki energy at contact area (not muscularly stiff), so the elbow can remain soft and so connection and suspension of the arm is through the back muscles.
Kime: Pressure to floor
Serves to produce power by acceleration of body weight 2 to 3 times, the actual body mass cannot change of course, but it can be accelerated to produce more power. Pressure to floor is also a mean for force delivery, likewise the long jump, to transfer the run up momentum into a jump, one must hit the ground. Use the breath to apply pressure to floor with the intention of the reaction from floor being absorbed through the body and delivered to target, do not stop the breath, since the momentum will stop, also one must not think about hitting, power is indirect.
Sharp total body contraction from the floor up and from the spine out to line of technique. (for shocking power, power delivery in shortest time)
Force divided by time equal impact power, we need shocking power, therefore the body should be as dense as possible for a short time as possible, like still. But power needs direction; therefore we say contraction to spine and from the spine chain reaction to technique. This need to be explained more, but in general, it allows us for maximal recruitment of muscle motor units, and it allows the contraction to be outward to technique, rather than hindering, jamming the power.
Kiai, breathing makes types of kime, and energy delivery.
Each kime is different, a punch to the face or to the body, strike to the face or sweeping block all require different types of energy and impact. To the massive body we need more penetration, to the head which gives sharper shock is necessary, a strike where the reaction at impact is sideline of the arm and therefore the support from the body not as strong, sharper shock is needed. A block does not need to be as strong and must allow us for quick transition to counter therefore sharp kime is a must. Sweeping block is smooth. We use 3 types of kiai: Ei, Yah, To. But endless variations since no kime is the same.
