"There have been many books on judo–some highly competent, others well-written or well-illustrated, some fit for beginners, others for the advanced student. To have all these in a single volume is unusual."–San Francisco Chronicle
The Art and Science of Judo is a revealing Japanese martial arts manual that focuses primarily on the scientific principles at work in Judo.
In this book, highly-respected Judo instructors Jiichi Watanabe and Lindy Avakian delve deeply into the mechanics of Judo, offering clear-cut scientific explanations for the numerous techniques involved in throwing and grappling. By understanding the science behind the art, you will become prepared to perform the right moves at the right time and successfully meet the challenge of responding to your opponent.
The book has over 200 illustrations and 40 photos which show the forces that are employed when performing common Judo throwing and grappling moves such as hip throws, foot sweeps, collar holds, and many more. In addition to the precise explanations of judo's physical aspects, you'll also find detailed insights into the psychological factors related to judo's underlying philosophy.
Topics include
How dynamics are applied to Judo
The three principles for practicing Judo
The three laws of motion and how they apply to Judo
Different kinds of force found in Judo techniques
How to effectively practice throwing and grappling
A new foreword by Judo instructor Neil Ohlenkamp offers insight on the book's importance as a resource for every Judo practitioner and instructor. The Art and Science of Judo is a fascinating and valuable work, which will help you achieve success by not only understanding what techniques to master but also why they work and when to use them.
Author(s): Jiichi Watanabe and Lindy Avakian
Publisher: Tuttle Publishing
Year: 2022
Language: English
Commentary: The Art and Science of Judo, A Guide to the Principles of Grappling and Throwing
Pages: 192
Tags: The Art and Science of Judo, A Guide to the Principles of Grappling and Throwing
List of Illustrations
Foreword
1 The Art and Science of Judo
2 How Can Dynamics Be Applied to Judo?
Nervous System
1. Sensory nerves (five senses: sight, touch, taste, hearing, smell)
2. Motor nerves (control of muscular action: movement of fingers, working, talking, etc.)
Reaction Time
1. Reaction quickened by exercise
2. Unconditioned reflex action
3. Conditioned reflex action
4. Evaluation of the use of these three reactions in judo
Nine Cases in Which Reaction Time Becomes Longer
The Unguarded Moment
3 Three Principles for Practicing Judo
Break Your Opponent’s Posture before Applying Your Throw: kuzushi (unbalancing opponent)
1. Stability of an object
2. Stability of a human body
3. How to break the opponent’s posture
Take Advantage of the Waist and Abdominal Region
1. The force of the waist and abdominal region coordinates all parts of the body
2. The force of the waist and abdominal region benefits the nervous system
3. The force of the waist and abdominal region can be developed by training
Practice Judo in a Natural Posture
1. The natural posture is best for practicing judo
2. Grappling techniques require a different type of posture
4 Three Laws of Motion
First Law of Motion
Second Law of Motion
Third Law of Motion
5 Kinds of Force
Muscular Force
Gravity
Momentum
1. Impulse
2. Impulsive force
3. How to apply the strongest force possible on the opponent
4. The relation of momentum to the force of the arm
Friction
Coefficient of Friction
6 Acting State of Force
The Principle of Transmissibility of Force
Composition of Forces
Decomposition of Forces
The Moment of Force
The Moment of a Couple
7 How to Practice Throwing
Some Advice on Throwing Techniques
1. Where to hold
2. How to grasp
3. How to advance or retreat
Ukemi: The Art of Falling
Explanation of Throwing Techniques
1. Uki-goshi (hip throw)
2. Uki-otoshi (floating drop)
3. O-goshi (major hip throw)
4. Tai-otoshi (body drop)
5. Tsurikomi-goshi (lifting hip throw)
6. Harai-goshi (sweeping loin throw)
7. Hane-goshi (spring hip throw)
8. Hiza-guruma (knee wheel)
9. Harai-tsurikomi-ashi (lifting foot sweep)
10. De-ashi-harai (advanced foot sweep)
11. Okuri-ashi-harai (sweeping ankle throw)
12. O-soto-gari (major external reaping)
13. O-uchi-gari (major inner reaping)
14. Ko-uchi-gari (minor inner reaping)
15. Tomoe-nage (circle throw)
16. Uki-waza (floating throw)
8. How to Practice Grappling
Classification of Grappling Techniques
1. Osaekomi-waza (hold downs)
2. Shime-waza (strangles)
3. Kansetsu-waza (elbow locks and twists)
The Relation between Grappling and Throwing
Attack Methods in Grappling
1. Force must precede speed and lightness of motion in grappling
2. First consider how to produce the largest momentum possible and how to apply it effectively
3. Immobilize the force of your opponent’s lower extremities
Defense Methods in Grappling
Explanation of Osaekomi-waza (Hold Downs)
1. Hon-kesa-gatame (side collar hold)
2. Kuzure-kesa-gatame (modified side collar hold)
3. Kata-gatame (single shoulder hold)
4. Kami-shiho-gatame (four-quarter hold)
5. Kami-shiho-gatame: a slight modification
6. Kuzure-kami-shiho-gatame (modified four-quarter hold)
7. Kuzure-kami-shiho-gatame: another modification
8. Yoko-shiho-gatame (side four-quarter hold)
Explanation of Shime-waza (Strangles)
1. Nami-juji-jime (normal cross strangle)
2. Kata-juji-jime (half cross strangle)
3. Kafa-juji-jime (half cross strangle): a modification
4. Okuri-eri-jime (sliding collar strangle)
5. Yoko-okuri-eri-jime (side sliding collar strangle)
6. Kata-ha-jime (single wing strangle)
7. Hadaka-jime (bare-hand strangle)
8. Ryote-jime (two-hand strangle)
Explanation of Kansetsu-waza (Twists, Bends, or Locks Applied on the Elbow Joint Only)
1. Hiza-gatame (knee-elbow lock)
2. Juji-gatame (cross armlock)
3. Ude-garami (entangled armlock)
