Judo is a Japanese martial art created by Jigoro Kano in 1882. It blends techniques from jiu-jitsu and other martial arts traditions. In Brazil, more than 2 million people practice judo, 1 million of them in São Paulo. Judo rules aim to promote safety and efficiency in competitions.
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Judo athletes use the judogi and compete on a mat. They seek to immobilize opponents with defense and attack techniquesSince 1964, judo has been an Olympic sport, with rules to protect athletes and ensure fair results.
Origin and history of judo
Judo is a Japanese martial art created by Jigoro Kano in 1882. Kano founded the Kodokan Institute in the same year. There, he developed and taught the techniques and philosophies of the sport.
He used elements of Ju-Jutsu to create an effective practice for self-defense and physical and mental strengthening. After World War II, judo spread throughout the world.
Judo has become a Olympic modality in 1972. Before that, it was demonstrated in 1964 at the Tokyo Games. This helped make it more popular worldwide.
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Judo began in Brazil in the early 20th century, thanks to Mitsuyo Maeda. The first tournament was held in 1931 in Araçatuba, São Paulo. Since then, the sport has grown and become an important part of Brazilian sports culture.
The concept of judo
Judo was created by Jigoro Kano in 1882 in Japan. It is a martial art that combines physical and spiritual strength. Techniques include attack and body defense.
After World War II, judo spread throughout the world. Brazil stood out, winning many titles in this sport.
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What is judo?
THE definition of judo it's a sport and a martial art. It seeks efficiency in the use of physical and mental energy. In competitions, it is practiced as ippon-shobu.
This practice improves the body and mind. It prepares people to face life's challenges.
Philosophical principles
THE philosophy of judo has important values. They are expressed in moral code. These values include courtesy, courage, honesty, and more.
These principles guide the judoka training. They transform training into a journey of personal and moral growth.
Objectives of judo
Judo's goals go beyond competition. They include physical development and fighting spirit. They also promote morale and health.
Judo helps overcome personal limits. It promotes discipline and resilience.
| History | Details |
|---|---|
| Creator | Jigoro Kano |
| Creation Date | 1882 |
| Olympic Introduction | 1972 for men, 1992 for women |
| Country with Most Titles | Brazil |
Equipment used in judo
Judo requires specific equipment to be practiced correctly. This equipment ensures athletes' comfort and safety.
Judogi and belt
THE judo uniform, or judogi, has four pieces: Wagi, Shitabaki, Obi and Patch. The banner, or Obi, shows the graduation by belts of the judoka. The Wagi must cover the arms completely.
Judokas wear a white t-shirt underneath the women's judogi.
Tatami and Dojo
The dojo is where judokas train and compete. The tatami, measuring 14 meters by 10 meters, is where the matches take place. It is designed to cushion falls and protect against injuries.
Protective equipment
For the safety in judo, mouthguards and joint supports are used. These devices help prevent injuries.
To learn more about judo rules and equipment, see this complete guide to judo.
Basic fundamentals of judo
Judo fundamentals are essential for effective and safe practice. They include posture, grip, and movement. These are the foundations for all judo techniques.
Posture (Shisei)
Good posture is essential for balance in a fight. It helps execute techniques and protects against your opponent's attacks. A solid posture is crucial for good positioning.
Footprint (Kumi-kata)
The grip, or Kumi-kata, is very important in fighting strategyHow we hold our opponent can influence the success of a technique. An effective grip provides control and facilitates strikes.
Movement (Shintai)
Movement, or Shintai, is how we move on the mat. Good movement is key to the effectiveness of techniques. Constant movement challenges the opponent and creates attacking opportunities.
Mastery of these basic skills is the foundation for more advanced techniques. Good positioning, strategy, and combat dynamics can change the outcome of a fight. Practicing these fundamentals correctly prepares the athlete for challenges.
Judo techniques
Judo is a martial art Full of history and philosophy, it has refined and well-structured techniques. These techniques are divided into two broad categories: standing techniques and ground techniques.
Standing Techniques (Nage-Waza)
To the Nage-Waza are used to take down an opponent with the hips, arms, and legs. There are 10 main types of throwing techniques. These techniques are divided into five phases called go-kyo-no-waza.
In 1934, the Gokyo-no-waza included 40 different projection techniques.
The projection phases are:
- Kumikata: Grip on the kimono
- Kuzushi: Imbalance
- Tsukuri: Positioning
- Kake: Projection
It's important to keep your body relaxed and agile during these steps. To learn more about the rules of Judo, see here.
Ground techniques (Katame-Waza)
To the Katame-Waza focus on ground strokes and are essential in combat strategy. These include immobilization techniques, chokes, and armbars. There are 11 important control techniques in competition.
Immobilization techniques control the opponent. Choking and armlock techniques force submission.
There are techniques to cushion falls, called ukemi-waza. They are important to avoid injuries. Judo teaches fighting skills and practices for various situations.
The grip techniques (kumi-kata) and displacement (shintai) are fundamental. The shintai helps maintain proper posture and follow the opponent's movements. tai-sabaki is essential for an effective defense.
| Technique | Description |
|---|---|
| Nage-Waza | Projections using hips, arms and legs. |
| Katame-Waza | Immobilization, strangulation and armlock techniques. |
Practicing these techniques helps judokas develop skills useful in competitions and real-life situations. For more information on the rules and principles of judo, see the website.
Scoring and fight time
THE points system in judo is crucial in defining who wins a fight. The main points are the ippon and the wazari. They show the quality of the techniques used.
Types of points
THE ippon is given when someone performs a perfect technique and knocks the opponent onto their back. Or when they immobilize the opponent for a certain amount of time. wazari is for less perfect, but important falls. Two wazari are like one ippon.
Shido are penalties that can be given. If a judoka receives three shido, they lose the match.
Duration of the fight
A judo match lasts four minutes for both men and women. The match can end with an ippon or wazari. However, penalties do not decide the winner, except in cases of disqualification.
Golden score
If there's no winner within four minutes and the fight is tied, the fight goes to Golden Score. During this extra time, whoever scores a point or is penalized decides the fight. Golden Score adds excitement and challenge, valuing skill and endurance.
Judo belts and ranks
In judo, the grading system is crucial for measuring the progress of practitioners. skill levels are marked by colored bands, each indicating a stage of learning. Let's see how these ranks work and what they represent for judokas.
Ranking by belts (Kyu)
The classification begins with a white belt, for beginners, symbolizing purity and openness. Practitioners progress through belts such as gray, blue, purple, and brown. Each of these belts represents advancement in skills and techniques.
- White Belt
- White/Gray Belt
- Gray Belt
- Gray/Blue Stripe
- Blue Belt
- Yellow Belt
- Orange Belt
- Green Belt
- Purple Belt
- Brown Belt
- Black Belt
For example, a white belt can take a quarter to advance, while a Gokyu belt can take about 12 months. Some people can jump directly from white to blue belt if they're over 16.
Advanced degrees (Dan)
Advanced ranks begin with the black belt, at the Dan level. Each black belt has sublevels up to 5th Dan. After 5th Dan comes the coral belt, striped red and white, and finally the red belt.
| Level | Range | Description |
|---|---|---|
| 6th Dan | Coral Band | Represents substantial experience and progress. |
| 9th-10th Dan | Red Belt | Reserved for judo masters with exceptional mastery. |
In 1883, Tsunejiro Tomita and Shiro Saigo were the first to receive 1st Dan. Yoshiaki Yamashita achieved 10th Dan in 1935, thanks to Kano. It typically takes 58 years to reach 10th Dan.
For more information on the history and ranks of judo, see our website.
Judo rules in competitions
Judo competitions have strict rules for safety and fairness. They take place on a mat measuring 14 to 16 square meters per side. The match lasts up to five minutes.
To win, you need to score an ippon. This means forcefully pinning your opponent to the ground on their back. If there's no ippon, the winner is the one with the greater advantage.
There are several scoring methods, such as ippon, wazari, yuko, and koka. Ippon is the highest. Competitors can also win with immobilization techniques, such as osae-komi.
If the rules are not followed, there may be penalties. shidos are punishments for bad attitudes or lack of effort. Three shidos may lead to disqualification.
THE hansoku-make is the most severe penalty, leading to immediate disqualification. Competitions are divided by weight to ensure fairness. The attire, like the judogi, is blue or white.
Since 2018, it is no longer possible to decide fights by shidos in case of a tie. This makes the competition fairer, based on techniques and skill.
