この球はいくら転々と動いてもどこにも抵抗を感じない（倒れた感じがしない）

すなわち、この玉の姿となり、その球の気持ちとなるならば、人間も球の如く円満に軸を完成させられると私は考えた。

そこで、この球の姿が人間の道となり、技の真の姿となる。
こうした原理は、技にとっては科学的研究となり、
また人間関係においては、「道」となってこの球の真の姿があると考えた。
すなわち、円満であればあるほど全て社会が発達し、また、これの無理のないところにこそ、本当の真の道があるのではなかろうかと考えた。


そこで私はどこまでも、球を研究した結果、その指導原理を考えた。その指導原理とはなんだろうか。
すなわち、押さば回れ、引かば斜め。
この球の姿をいつも研究した結果、これこそ私の柔道の指導原理としたのである。

I was tauight by My Dad some Justu, that He learned in WW2. He said "When Pushed, Pull. When pulled Push.

The order in practicing is:
1) Technique
6) Speed
7) Strength/Power

You can add some more points of "technique" after 1) :P

A lesson of Basic Physics is the Torque. The longer the fulcrum is, the easier is the throw.
That explains a lot the Nage Waza and why works perfectly with bigger opponents

This is why plyometrics should be a major component of strength and conditioning training for judo.

I have carefully studied several judo techniques using the ideas in this book for many years with very good results.  But, it took time and experiments before I found examples and ways to apply it during judo practice.  For example, in kouchi gari ( & osoto & kosoto ) the standard way of practicing the techniques won't work against a resisting defender unless you use the idea of two forces hitting the opponent (a couple)  where your chest and leg work in two opposite directions to overpower the defender. Many other judo techniques will also fail unless you understand how to apply the principles in this book. It's got the real secrets but you need to slowly apply the principles to see how it works at first.  There is more practical wisdom in this book than in all the videos and books I have seen.

Explosion + timing = gg

Hey Chadi, nice to see a fellow french (If i am not mistaking) judoka on youtube. I am a judo black belt since i was 17, i quite judo for years ann studied other martial arts and i'm 31 now and i'm back to judo/jujitsu and i can say that content such as yours is quite inspiring.
And you are right : technic and understanding the principle is the big deal, whaterver the martial art.

My GOD! First time I see this move in my life, the guy moves like an anime character? Look at him floating, by using momentum. Looks surreal, like the fake flying part of crouching tiger hidden dragon. This is unreal skill!

Strength training in itself can be seen as a martial art, but it's secondary and should be seen as such.

Most useful video on YouTube by far for me! Great job 👏

It has actually allowed me to perform waaaay better in work, where explosion and force manipulation allow me to easily and no sweat out labor those around me.

Thanks for the breakdown, very helpful. This part of waza is rarely taught. Just what I needed to hear.

Thank you for sharing your work Chadi. As usual very informative and too the [point. Kudos

Really interesting video! Looking forward to read that book! I like to add that Kinetic Energy = 1/2 * mass * (velocity)^2 , velocity is squared here, hence more energy from greater velocity. Force is also equal to the rate of change of momentum, the shorter the time frame received from greater velocity produces more force!

What made me fall for Judo, is when teaching a student told them to stop and asked them where do feel the opponents weight and where do you feel yours. Close your eyes and feel the balance. Then told them to complete the throw and when they opened their eyes you could see Judo there. Someone doesn’t know a thing until it’s expressed in all they do, when they see Judo in all things watch a master begin to take shape.

Very good and high quality content you have

Never had the respect for Judo growing up but I do now and I actually want to start training in it.

Excellent work Chadi! Want that book!

Excellent explaination, Mifune was a great Master.