Secrets of Judo. Jiichi Watanabe
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Illustrations
1. Nervous system: | 26 |
2. Reaction time: | 28 |
3. Unconditioned reflex: | 29 |
4. Conditioned reflex: | 29 |
5. Object and image: | 32 |
6. Gravity and weight: | 37 |
7. Center of gravity of a standing object: | 37 |
8. Center of gravity of a suspended object: | 37 |
9. Finding the center of gravity in a triangle: | 38 |
10. Finding the center of gravity in a trapezoid: | 38 |
11. Center of gravity and stability of a standing object: | 39 |
12. Center of gravity and instability of a standing object: | 39 |
13. Relative stability of standing objects: | 39 |
14. Right natural posture (migi-skizen-tai): | 41 |
15. Main natural posture (shizen-hontai): | 41 |
16. Center of gravity in main natural posture: | 41 |
17. Stability of main natural posture: | 41 |
18. Main defending posture (jigo-hontai) and its stability: | 41 |
19. Hiza-guruma (knee wheel): | 41 |
20. Kuzushi (off-balancing): | 41 |
21. Happo-no-kiiziishi (eight directions of off-balancing): | 43 |
22. Dynamic coordination: | 48 |
23. Coordination of forces: | 48 |
24. Uki-otoshi (floating drop): | 49 |
25. Combination of forces increases speed: | 49 |
26. Right-triangle sitting position: | 52 |
27. Right-triangle standing position: | 52 |
28. Right-triangle kneeling position: | 53 |
29. Stepping forward in right-triangle position: | 53 |
30. Improper posture hampers use of abdominal force: | 55 |
31. Defending posture does not permit quick movement: | 55 |
32. Law of reaction: | 62 |
33. Law of reaction: | 63 |
34. Kicking force K produces reaction force F: | 63 |
35. Force of momentum: | 66 |
36. Force of friction: | 66 |
37. Muscular contraction: | 67 |
38. Partial and total muscular force: | 67 |
39. Using force of gravity to assist in a throw: | 69 |
40. Center of gravity at fulcrum: | 69 |
41. Momentum plus muscular force beats muscular force alone: | 71 |
42. Momentum supplements muscular force in a throw: | 71 |
43. Impulse and impulsive force: | 72 |
44. Harai-goshi: less effective means of inducing momentum: | 74 |
45. Harai-goshi: more effective means of inducing momentum: | 74 |
46. Friction varies with weight: | 76 |
47. Friction assists in defense against a throw:
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