Applying Law of Gravity to Judo
In judo it is important to throw your opponent by making use of his loss of balance, the law at work here is the law of gravity. We know that Sir Isaac Newton discovered the law of gravitation by seeing an apple fall from a tree. All bodies in the universe attract one another. For instance, the earth attracts the bodies near and around it. In turn they also pull the earth.
Since the power of attraction, according to Newton, is proportional to the mass of the body that attracts, the larger the mass of the body, the larger its attraction. All bodies near the earth fall to the earth because it has an immense mass. An airplane or a bird starts to fall to the ground as soon as its power of flight is exhausted. The force of attraction between the earth and a two-pound weight is twice that between the earth and a one-pound weight.
The attraction between the earth and a body is called gravity. When gravity is represented by weight units, it is called weight.Now let us consider the application of the law of gravity to judo. The heavier the opponent, the more difficult it is for you to move him horizontally. It is even more difficult for you to move him vertically. On the other hand, a larger gravity acts on him to make him fall.
In judo gravity may be represented as a force pulling the opponent downward. If you want to make him fall, you make him lose his balance;that is, you cause his center of gravity to go outside the base. Then the gravity that acts on him works for you to make him lean or fall. Let us study the action of the law of gravity by illustrations.
Lets assume that you and your opponent are standing face to face. When your opponent advances towards you to take hold of you by the left lapel. At the same time you withdraw as much as your oponent advances. If your oponent is mentally or physically unable to let his advanced foot advance again, he will lean forward, lose his balance, and fall.
Also, it is obvious that the same thing will happen when the stability of the legs supporting the trunk is taken away. When your opponent takes a larger step forward than usual, you merely sweep his advanced foot away in the direction of his advance,(de-ashi-harai, or advanced foot sweep). By doing this, you will drop him with the gravity acting on him directly.
Finally let us consider a case in which the opponent is downed by the nullification of his resistance to gravity. It may be difficult for you, because of the weight advantage of your opponent, to lift him with your arms. But it is easy to support him at the center of gravity with your loins as he leans forward. Look at the seesaw in the above figure.
A long board is supported at the center of gravity, so that the gravity on one side is equal to that on the other. Thus a slight force can rotate the board around the fulcrum. After making your opponent lean forward, support him at the center of gravity with your loins. No matter how much weight he may have, a slight pull can rotate him around your loins. To support your opponent completely at the center of gravity with your loins is the key point of such hip throws as o-goshi, o-tsuri-goshi, ko-tsuri-goshi, hane-goshi, etc.
Visit http://www.realniches.com/archives/category/judo/page/2/ to know more about Judo techniques.
Visit http://www.realniches.com/archives/2005/06/conditioned-reflex-action-in-judo.html to learn about conditioned relfex action in Judo.
** Attention Webmasters / Website Owners **
Just as an aside. For those who would "box" us in to specific "category".........
5 Steps to Choosing the Right Martial Art for You
One of the questions I get asked most frequently, in several different variations is about which martial art an individual should study. Generally which martial art, and more importantly which school to choose are fundamental decisions someone should make. My answer is usually something along the lines of, "choose the school and the system that you are going to stick with and stay with it for the rest of your life."
Is it a ?Hurt? or is it an ?Injury?
My father fed me this line every time I felt pain or discomfort. Growing up the coach's son was not without difficulty. My dad never played favorites; in fact I had to do it better and cleaner than the other kids. Now, he didn't say this to be malicious, he just wanted to teach me something about athletic competition and in turn, a bit about life.
"Will this work so that I can use it instinctively in vital combat against an opponent who is determined to prevent me from doing so, and who is striving to eliminate me by fair means or foul". ~ Rex Applegate
A Beginning History of Old School Jujutsu - Part 1
Over the next couple of day's I will writing an article of the history of Pre-WWII Japanese Jujitsu/Judo. I wasn't sure where to start, but here I am so let's get started.
Learning the Modern Dynamics of Judo
You may have the erroneous idea that force is not necessary in judo, especially when you see a sixty-year-old instructor throwing many young- and strong men seemingly without effort. Dynamics, however, denies this illusion. A body begins to move only when an external force works on it, as will be explained later. A human body is a physical entity. Therefore, if you want to break your opponent's posture and make him fall down or hold him down on the mat;, you must apply the proper force to him.
Interesting Facts on Samurai Sword Manufacture
A samurai's sword is his most sacred and prized possession. Not only did the samurai rely on his sword to defend him, but spiritually the sword held greater significance as the samurai actually believed his soul inhabited the sword. Therefore it comes as no surprise that the same discipline and respect in which the samurai wielded his sword, went into the actual making of the sword itself.
Grown Man Quits After 3 Mat Pulls!
A matt pull is the simple act of lying on flat on your stomach, reaching in front of you and pulling your self across the mat. This is one exercise that helps develop your muscles for grappling. We do these as a part of our warm up.
A Great Question!
It's a question that we went back and forth with for awhile ourselves many moons ago. The "how" and "why" of our conclusions may be of some interest. Whether or not anyone agrees with them, well at the least you'll fully understand the basis for them.
Fairbairn on the Fairbairn Method
Something for our shooting "enthusiasts" -
The Shocking Truth About Stun Guns
If you are outside the world of law enforcement, chances are you haven't had much "hands on" work with stun guns. Stun guns are as popular today as they have ever been and with the newer smaller packages like cell phone/stun guns, their popularity continues to grow. But before you deploy a stun gun, there are a few misconceptions you may not know about.
So you are thinking of starting to train in okinawan karate. There are a lot of choices as far as okinawan karate schools are concerned. Which school do you choose ? What is the best school or system? If you are a parent, what okinawan karate school is best for your children?
Samurai Sword Basics, A Brief History
Capturing the spirit of old Japan and recognised by its deadly curvature, the samurai sword is widely recognised throughout the world as the most deadly of all Japanese weaponry. Although gaining modern fame and notoriety in modern epic cinema in such films as The Last Samurai and the Kill Bill series by Quentin Tarantino, samurai swords have long being an iconic symbol of Japan and its history.
Is Aikido a Martial Art ?
Sensei Henry Ellis Co-Author of the new book Positive Aikido.- 2005. A direct student from 1957 of the legendary master Kenshiro Abbe Sensi 1915 - 1985..
The Acronym That Saved My Life
Frequently, I get asked about certifications, systems or methods. We made a decision a long time ago of purposely staying away from things like this.
Eight Simple Rules for Saving Your Life
Let's put the non-lethal fantasy to rest.
How to Relax During a Fight
I received a returned video from a well meaning, but severely misguided, former customer. This is a rarity since over the past 2 plus years and hundreds upon hundreds of videos shipped; I can only count 3 returns. One was unopened, one included a note that the recipient thought the videos would be something else, but he intended to buy the rest of the videos we offered, hmmm smells a little fishy (incidentally, this person has been banned from buying anything from us again). And lastly, this well-meaning person. The note inside prompted me to write this article. He identified himself that he was an orange belt in Krav Maga and that he has been instructed to "relax" and be loose during a life or death struggle. Now, I have not trained in Krav Maga nor do I know anything about the modern version of it. My focus is on the "relaxing" strategy; which I have heard from a variety of different "experts" during my 30 plus on the mat.
Does It Hurt When I Do This?
Let me tell you something. I don't bruise too easily. You guys know after years of Wrestling, Football, Karate, Jujutsu and Judo- you develop resistance to those types of things. Well at least I That's what I thought?Every time I work out with Carl Cestari, I am left with reminders of our time together. I have to tell you, the day after filming the Combat Jujutsu Series I had bits and pieces bruised or missing!!!
COMBATIVES A Rose by Any Other Name?....Part 2
The advent of World War One (the war to END all wars) brought warfare into a new and foreboding era of man to man killing and slaughter. Air power, mechanized warfare, chemical warfare and the general widespread use of machine guns changed the face of battle almost completely. However the solitary fact remained that in the end it was STILL man against man in a desperate, brutal and deadly struggle for survival. The static and stagnant lines created by entrenched warfare demanded new and innovative tactics and strategies. Among these was the advent of "raiding" parties. Small groups of lightly armed men who ventured out into "no man's land" for the purpose of recon, probing, intelligence, prisoner grabs, and psychological "demoralization" missions. The nature of fighting under these conditions became popularized as "trench warfare". This was close-in knife to belly hand to hand combat. All manner of expedient, purpose designed and improvised close-combat weaponry was employed. While technological advances were being made in all other forms of warfare, this particularly nasty and vicious man to man fighting reverted to the most barbaric, primitive and bloody "methods" imaginable. Just as it has been since Cain slew Abel and how it WILL be until the last two humans clench fists or seize stones in raging anger during the final melee of the Apocalypse.
Have No Misconceptions
I just received an Email from a woman who has a child (3 year old) and about to have another. Considering my wife is in a similar situation, this question couldn't be more relevant. This idea can be expanded to those of us getting older, injured or of smaller stature. Keep in mind, a little common sense goes a long way.
|© Athifea Distribution LLC - 2013|