Judo is an intensive form of martial art that demands high levels of physical fitness and sports biomechanics, making technique practice essential to succeed in competitions. Kata-eri seoi nage is one of the most common techniques used in competitive judo matches.
Tori uses this technique by grasping both arms of his uke and then throwing her over his shoulder.
It is a judo throw
The Seoi Nage is a powerful throw used in judo that’s designed to get an opponent over your shoulder and into back position. Although powerful, this move should only be attempted when necessary – for instance attempting a kneeling Seoi Nage in self-defense may result in your opponent countering with sumi gaeshi; therefore it should only be practiced on mats.
For Seoi Nage to work efficiently, one of the best methods of setting it up is with kouchi-gari. To use it successfully, strike at your opponent with enough force to cause them to step forward before turning in for morote Seoi Nage. Alternatively, Ouchi-gari into Seoi Nage is also effective; giving more room and power during throw.
One key element in successfully executing this throw is trunk position. Beginners often struggle with this aspect and risk having their opponent counter the throw. As such, it’s essential that during practice sessions you focus on maintaining good trunk posture to help prevent losing control over your opponent during throws.
As part of your Seoi Nage technique, aim to achieve a kuzushi (breaking balance). To do this, pull with your lead hand onto your opponent’s sleeve grip, opening their elbow while breaking or minimising their grasp on your lapel and opening their chest of their kimono.
Seoi nage is an exceptional throwing technique due to its flexibility. This throw can be executed in many different ways and should be an essential part of every judoka’s repertoire, as it serves both as an effective submission technique as well as being used for self-defence purposes.
Takanori et al conducted a recent investigation to explore the biomechanical factors contributing to fast and skillful execution of Seoi Nage. Their kinematic analysis demonstrated how elite and college judokas performed this technique differently – their speed of rotation and angle of inclination are dependent on level of athleticism and fitness.
It is a te-waza
Te-waza (hand techniques) is one of three subgroups within Nage Waza (Throwing Techniques), including all hand throws in judo. Other subgroups include Koshi Waza (hip techniques) and Ashi Waza (foot and leg techniques). Te-waza can be effective when executed by using attacker’s hands to disproportionally use hand techniques against their opponent to break their balance by gripping on to their collar or belt and pulling up towards chest or back for balance breakage.
The Seoi nage, or shoulder throw, was one of the original forty throwing techniques of Judo that now make up Kodokan Judo’s 67 throwing techniques. Classified as te-waza (hand technique), and ranking fifth on Gokyo no waza list.
Tori grasps his opponent, or Uke’s collar with his left hand and pulls him around by lifting his shoulder, drawing them closer. Tori then slides his right leg between Uke’s legs on either side and twists his body in order to lay them down on their left side on the mat – the Uke must remain flat against his stomach, not stand up in an attempt to escape this throw – making this technique an excellent way for beginners to practice Te-Waza as it requires little strength or speed to execute successfully.
It is a kata
The Nage-no-kata is a set of 15 techniques that illustrate various forms of nage-waza (throwing techniques) found in judo. As one of two randori-no-kata (free practice forms) in Kodokan judo, this free practice form is often performed during competitions as an excellent way to assess one’s skills before moving up through higher ranks of judo.
Beginning kata practice begins with both parties bowing onto the mat formally. Following that, tori, or thrower, launches multiple attacks followed by counterattacks from uke.
Tori then pulls Uke in either an upward motion, right or left, before picking him up on her back for Seoi-nage – enabling even smaller contestants to overcome much larger opponents with this move.
It is a kuzushi
Kuzushi is a key aspect of judo that must be learned and practiced to become proficient. Used to unsettle an opponent and apply powerful throws, kuzushi often appears to be the culprit when students fail a technique; but with time and practice kuzushi can easily be acquired.
To achieve kuzushi, first set your body in motion towards your intended throwing direction. This will generate a force equal to the moving mass times its velocity; you then must transfer this momentum over to uke which requires exerting tremendous amounts of force quickly.
Kuzushi can be achieved using various techniques, including tsukuri or kake. When engaging in tsukuri, the tori must keep his or her tsurite hand at an ear level while keeping their hikite hand close to chest level, this prevents falling behind their partner and being counter-thrown. Tori must also keep their hikite hand close to the chest in order to break grip of uke’s sleeves or lapels on his chest area.
Kuzushi for this throw involves drawing your opponent forward onto their balls of their feet or rightward and pulling. This creates a twist in their spine as your sleeve grip arm’s elbow penetrates deeply through to their opposite side and tightens tight around their arm close in toward you, maintaining tight control close by your body. Additionally, this method also works well when used with alternate gripping styles like same side sleeve and lapel grips.