Secrets Of Judo - A Text For Instructors And Students
One of the great secrets of Judo is why this book is still in print, while so many better books cannot be found anymore. This book attempts to explain Judo techniques in terms of physics. Momentum, friction, coefficients, composition of forces, and moment of force are some of the subjects you'll run into in this book. What you won't find, unfortunately, is any good Judo. I can't honestly recommend this book.
Contents List of Illustrations 9 Foreword 13 1. The Art and Science of Judo 17 2. How Can Dynamics Be Applied to Judo? 25 Nervous system: 26 1. Sensory nerves: 27 2. Motor nerves: 27 Reaction time: 28 1. Reaction quickened by exercise: 28 2. Unconditioned reflex action: 29 3. Conditioned reflex action: 29 4. Evaluation of the use of these three reactions in judo: 30 Nine cases in which reaction time becomes longer: 31 The unguarded moment: 33 3. Three Principles for Practicing Judo 35 Break your opponent's posture before applying your throw: 35 1. Stability of an object: 37 2. Stability of a human body: 40 3. How to break the opponent's posture: 42 Take advantage of the waist and abdominal region: 47 1. The force of the waist and abdominal region coordinates all parts of the body: 48 2. The force of the waist and abdominal region benefits the nervous system: 50 3. The force of the waist and abdominal region can be developed by training: 53 Practice judo in a natural posture: 55 1. The natural posture is best for practicing judo: 56 2. Grappling techniques require a different type of posture: 56 4. Three Laws of Motion 59 First law of motion: 59 Second law of motion: 60 Third law of motion: 61 5. Kinds of Force 65 Muscular force: 65 Gravity: 68 Momentum: 70 1. Impulse: 72 2. Impulsive force: 73 3. How to apply the strongest force possible on the opponent: 73 4. The relation of momentum to the force of the arm: 75 Friction. 76 Coeffient of friction: 77 6. Acting State of Force 81 The principle of transmissibility of force: 81 Composition of forces: 82 Decomposition of forces: 84 The moment of force: 86 The moment of a couple: 90 7. How to Practice Throwing 93 Some advice on throwing techniques: 93 1. Where to hold: 93 2. How to grasp: 93 3. How to advance or retreat: 94 Ukemi: the art of falling: 95 Explanation of throwing techniques: 100 1. Uki-goshi (hip throw): 100 2. Uki-otoshi (floating drop): 102 3. 0-goshi (major hip throw): 104 4. Tai-otoshi (body drop): 106 5. Tsurikomi-goshi (lifting hip throw): 108 6. Harai-goshi (sweeping loin throw): 110 7. Hane-goshi (spring hip throw): 112 8. Hiza-guruma (knee wheel): 114 9. Harai-tsurikomi-ashi (lifting foot sweep): 116 10. De-ashi-harai (advanced foot sweep): 118 11. Okuri-ashi-harai (sweeping ankle throw): 120 12. 0-soto-gari (major external reaping): 122 13. 0-uchi-gari (major inner reaping): 124 14. Ko-uchi-gari (minor inner reaping): 126 15. Tomoe-nage (circle throw): 128 16. Uki-waza (floating throw): 130 8. How to Practice Grappling 133 Classification of grappling techniques: 133 1. Osaekomi-waza (holddowns): 133 2. Shime-waza (strangles): 134 3. Kansetsu-waza (elbow locks and twists): 134 The relation between grappling and throwing; 135 Attack methods in grappling: 136 1. Force must precede speed and lightness of motion in grappling: 136 2. First consider how to produce the largest momentum possible and how to apply it effectively: 137 3. Immobilize the force of your opponent's lower extremities: 139 Defense. methods in grappling: 142 Explanation of osaekomi-waza (holddowns): 144 1. Hon-kesa-gatame (side collar hold): 144 2. kuzure-kesa-gatame (modified side collar hold): 146 3. Kata-gatame (single shoulder hold): 148 4. Kami-shiho-gatame (four-quarter hold): 150 5. Kami-shiho-gatame: a slight modification: 152 6. Kuzure-kami-shiho-gatame (modified four-quarter hold): 154 7. Kuzure-kami-shiho-gatame: another modification: 156 8. Yoko-shiho-gatame (side four-quarter hold): 158 Explanation of shime-waza (strangles): 160 1. Nami-juji-jime (normal cross strangle): 160 2. Kata-juji-jime (half cross strangle): 162 3. Kata-juji-jime (half cross strangle): a modification: 164 4. Okuri-eri-jime (sliding.collar strangle): 166 5. Yoko-okuri-eri-jime (side sliding collar strangle): 168 6. Kata-ha-jime (single wing strangle): 170 7. Hadaka-jime (bare-hand strangle): 172 8. Ryote-jime (two-hand strangle): 174 Explanation of kansetsu-waza (elbow locks and twists): 176 1. Hiza-gatame (knee-elbow lock): 176 2. Juji-gatame (cross armlock): 178 3. Ude-garami (entangled armlock): 180 Index 183
It is a great pleasure for me to know that The Secrets of Judo is to be published under the joint authorship of Jiichi Watanabe, sixth dan, and Lindy Avakian, third dan.
Mr. Watanabe has been deeply interested in the scientific study of the various techniques of judo, especially from the viewpoint of dynamics. Mr. Avakian came to the Kodokan from the United States and earnestly studied the principles and techniques of judo here in Japan. He is now in his native country, where he has become known as an expert teacher of judo.
The Kodokan judo was born from the old jujitsu of Japan. Now, having been reorganized from the viewpoint of physical education, it has become an excellent sport, much favored in many nations of the world.
I believe that this book of the two judomen will be welcomed as a good guide for foreign students.
Tokyo, October 10, 1959
Kodokan Judo Institute