Warming Up, Techniques and Practice

Whatever their seniority, all experienced plays will almost habitually go through variable stretching routines and practice break-fall in a warming-up process before starting their rest work on the mat. How much time an instructor devotes to exercises and body-building routines in a class must depend upon how often the classes are held and how long each lasts.
Generally, however, in order to maintain a supple body and to build up strength and stamina, it’s the responsibility of the judoka to exercise outside the time spent on the mat. Then, at the beginning of a Judo session, the sensei, the sensei need concern himself only with leading his pupils through a warming up program designed to loosen limbs from head to toe and generally stir up the circulation in readiness for a vigorous Judo work-out.
The warming up exercise routine might well begin with jumping exercises followed by head rolling, arm swings to rotate the shoulders and trunk turning and twisting to loosen up the back. There should also be hip rolling with feet astride, and knee rolls performed with feet together. Ankle pulls should performed in a sitting position with the feet wide apart, and there should also be press-ups, sit-ups, cat stretches and squad thrusts. Other important exercises include revolving the feet forwards and backwards from the ankle, and repeatedly rotating the hands inwards and outwards while holding them at arm’s length. From there, it’s into break-falls. Hips, shoulders, legs, neck – all joints from head to toe are warmed up in a series of exercises before this group gets down to more serious work on the mat.
Exactly how your Judo education will begin on the mat depends very much upon your individual sensei, but it is likely to be in relation to a set syllabus which may vary slightly according to the policy of your club or parent organization. Over a period of time, any full syllabus should take a judoka through the range of two main categories of techniques as well as the necessary knowledge of kata (Demonstrations on page No 135). The two main categories are nage-waza (throwing techniques) and katame-waza grapping on the mat, generally referred to as ground work).
A third party category of Judo techniques, atemi-waza, is concerned with the delivery of blows and kicks which are capable of causing dangerous or even fatal injury. For that reason they are practiced only in kata and never in free practice or contest situations because a knowledge of then is not necessary in order to progress from beginner to black belt in Judo they are not explained in this blog. The two main categories of techniques, nage-waza and katame-waza, are themselves each divided into further groups. Nage-waza (throwing techniques) is subdivided into tach-waza (standing techniques) and sutemi-waza (sacrifice techniques).
Tachi-waza is further divided into te-waza (hand techniques), koshi-waza (hip techniques) and ashi-waza (foot techniques). Sutemi-waza are throws in which Tori (the attacker) must also fall on to the mat himself in the course of throwing an opponent. Sutemi-waza is divided into two groups of sacrifice techniques – ma-sutemi-waza, in which Tori must throw himself backwards in the course of executing the technique; and yoko-sutemi-waza, in which Tori throws himself sideways.
Katame-waza (groundwork techniques) is subdivided into osae-komi-waza (hold-down techniques), shime-waza (strangling or choking techniques) and kansetsu-waza (joint techniques). Although kansetsu-waza and shime-waza are grouped under the general category of ground work techniques, always remember that strangles, chokes and arm-locks can often be applied also from a standing posture. It is from this whole range of techniques that a syllabus might begin with throws such as o-soto-gari (major outer reaping) or ippon-seoi-nage (one-arm shoulder throw), and with groundwork such as keas-gatame (scarf hold). Note that only arm-locks are allowed in competitive Judo. Leg, wrist and neck locks or any other type of technique which attacks joints, are not permitted. Neither is the grabbing or twisting of an opponent’s fingers or thumbs. Whatever techniques are embarked upon to begin with, the sensei will no doubt demonstrate them before pairing you off with partner to try it for yourself under his supervision. Later, if he becomes satisfied also with your break-fall ability and general respect for dojo discipline and etiquette, he may release you for randori (free practice). In randori any number of pairs can be in practice combat on the mat at the same time. Each pair practices at its own pace and unless directed otherwise by the sensei, works on whichever techniques it particularly wishes to develop.
The sensei may direct everyone to practice, say, o-chi-komi; in which players
take it in turn to perform perhaps nine turn ins only on their partner and execute the full throw on the tenth. When performing o-uchi-komi, Tori takes the technique no further than performing the footwork for a particular throw as he moves in on his partner, pulling him to the point of break balance, making full body contact and then stepping out again. Practice at this enables a judoka to perform o-uchi-komi confidently, smoothly and at speed comparable to that of a contest. It combines technical improvement with good exercise routine. Finally, before moving on to the real techniques of Judo, remember that however hard the sensei works, any practice on the mat can only really be as hard and worthwhile as you want to make it for yourself- so work hard!
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