突きは踵で打つ。突くとは手，腕，拳で敵を打つことであるために，我々はつい，その手，腕，拳そのものに力が入ってしまう。しかし，空手の突きは，手で打つというよりも，足で打つ。もっと具体的に言えば，腰と腹で打つがそれを支えているのが足であり，その足の接している大地でもって打つ。つまり，突きは大地で打つ。そして，その大地と身体をつないでいる重要な結節点が，踵，特に後ろ足の踵である。したがって，突きは後ろ足の踵で打つと言っても良い。大地の上に二本の足で立って敵を打つことの秘訣は，大地でもって打つことにある。
Punching is made by the heel. Punching means an attack to an enemy by the arm, hand, and fist, so we unconsciously tend to strain that arm, hand, and fist. But, Punching in karate is made by the leg, rather than the arm. More specifically, it is made by both the abdominal and the lower back region, which are supported by the legs, which contact the ground. Accordingly, punching is made by the ground. Then, the important node relating the ground to the body is the heel, especially the one of the rear foot. Therefore, it can be said that punching is made by the heel of the rear foot. The secret for punching an enemy while we stand on the ground by the two legs is to punch him/her by the ground.
July 22, 2013
July 11, 2013
Back Side (Rear) Muscles
空手は，主に背面の筋肉を使う。攻防の際，下半身を締めるが，そのときには尻（大臀筋）と太ももの裏側（大腿二頭筋）から内股にかけての筋肉（内転筋）を締める。また，腹筋群も締めるが同時に背中の下部の筋肉群も締める。そして，受けたり突いたりする際に腕を使うが，このときには背中の上部の筋肉群（広背筋）を締める。広背筋でも特に胴体脇の裏側（背中側）の筋肉を使って受けたり突いたりするので，上腕に力が入るとすれば裏側，すなわち，上腕三頭筋の部分である。このように，身体全体を通して，背面（裏側）の筋肉を連動させて攻防する点が，空手に特徴的だと考えられる。「考えられる」というのは，可能性としては，柔術や剣術など，武術全般を通してこの理合は同じかもしれないからである。
Mainly the back side muscles are used in karate. During fighting, karateka tense their lower part of the body. At this time, the muscles tensed are from the hips (gluteus maximus muscles) and the backside of thighs (biceps femoris muscles) to the inner thighs (adductor muscles). While the abdominal muscles are tensed, the lower parts of back muscles are tensed. When we block and punch with the arms, the upper parts of back muscles (latissimus dorsi muscles) are tensed. Especially the back side muscles of the underarms are used for blocking and punching, so if you tense the upper arms, the part of the back side ones, or triceps brachii muscles are tensed. In this way, it is considered to be characteristic to karate that the offence and defense are made by synchronizing the back side muscles throughout the whole body. "Considered" means that there is a possibility that the above theory may be similar to the one in all of the martial arts such as ju-jutsu and ken-jutsu.
Mainly the back side muscles are used in karate. During fighting, karateka tense their lower part of the body. At this time, the muscles tensed are from the hips (gluteus maximus muscles) and the backside of thighs (biceps femoris muscles) to the inner thighs (adductor muscles). While the abdominal muscles are tensed, the lower parts of back muscles are tensed. When we block and punch with the arms, the upper parts of back muscles (latissimus dorsi muscles) are tensed. Especially the back side muscles of the underarms are used for blocking and punching, so if you tense the upper arms, the part of the back side ones, or triceps brachii muscles are tensed. In this way, it is considered to be characteristic to karate that the offence and defense are made by synchronizing the back side muscles throughout the whole body. "Considered" means that there is a possibility that the above theory may be similar to the one in all of the martial arts such as ju-jutsu and ken-jutsu.
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