Tai-sabaki – Movement Control

Tai-sabaki – Shintai – Shizentai

Basic Tomiki Aikido Footwork

All the practitioners of the Tomiki method, whether it is Aikido or Judo, are familiar with this model of footwork. This is one of the many overlapping components between Aikido and Judo. It is used in numerous books written by Kenji Tomiki. In “Judo et Aïkido”, an abbreviated English version of his Japanese books, the same concept is used to explain the footwork exercises.

Unfortunately, we cannot find indications how to use footwork in a proper way. We have the pattern, we know “shizentai or natural posture” is necessary during body movements, but most of the practitioners don’t know “how to….”. It is very easy to say “just practise”. The question arises “how to practise?”.

How to..?

Everybody knows that the answer coming from famous teachers when you ask them for something you don’t understand.

“Case by case”

Such an answer is not solving your problem. In case of footwork, we have to consider the basic types of footwork. Besides the basic types, we also have to think about the relationship between the body weight and gravity. And don’t forget the concept of “MA-AI“. By understanding the different aspects in proper footwork and practised these during solo-training and partner exercises, the finalisation will come forward during randori. As Kenji Tomiki said: colouring the dragon’s eye.

Basic types footwork

These are already discussed in other blog posts.

The moving body and shizentai

Among the fundamental elements of martial arts are, taijū no idō or moving the body weight with footwork and taijū no dendō or the transfer of body weight one of the most important concepts. Hino Sensei (Hino Budo’s method) says: “Strictly speaking, the motion of the body weight is to move by making his body a single block. For example, moving forward, or backward, being a solid block”.

Both skills (taijū no idō and taijū no dendō) are based upon proper footwork. And footwork includes also the use of shizentai or in Hino’s words “one’s body a single block”. Don’t take his words out of the context, because we have to take in account another concept or skill: Jukozo or the flexible body.

I would like to repeat a remark I made in other articles:

The main purpose of ritsuzen or standing meditation is to create a “linked” body-system.

This isn’t about standing still. This is an exercise with a lot of movement controlled by your mind. In essence, there is neither footwork nor arm movement. Nevertheless, it is possible some movements can occur when kyokotsu and koshi are involved.

Standing still or creating “shizentai” is the first step in footwork exercises. Advanced practitioners need just a few seconds to adopt shizentai, beginners need more time and need to practice a lot.

More to learn about ritsuzen and shizentai: A ring of power

Shintai and tai-sabaki

Kazuko Kudo a 9th dan Kodokan Judo made an interesting comment on footwork:

Advance-retreat (shintai) – Under this single heading we include both the advance-retreat (shintai) type of movement and turning movements (tai-sabaki).

To master the advance-retreat style of movement you must first master the following way of walking. Usually humans walk by putting their weight on one foot and advancing the other, then shifting their weight to the advanced foot as soon as it touches the floor and advancing the other foot. If we walk backwards the process is the same, only in the opposite direction. Forwards or backwards, this walking method always leaves your weight on one foot for an interval during which your body itself remains back with that support foot.

In his remark, he is talking about the normal way people are walking. In the next comment he talks about a martial way of walking.

In judo walking methods, on the other hand, we move our legs, hips, and bodies forward or backward all at the same time, you must not put one foot forward and leave your body behind or advance your body and leave one foot behind.

How to master this walking method? The first thing to remember is to maintain the natural body position. In judo we walk in the natural position, or to put it slightly differently we walk with our hips. As you walk do not let your feet move too far apart or too close together, do not let your body—head, shoulders, hips—rise and fall, and walk in a sliding smooth fashion across the floor.

Further, he advised to study the skill of “tsugi ashi”. He called this “following feet”. Tomiki’s Unsoku-who is using exactly the same method as Kazuko Kudo explained.

About Tai-sabaki, there is also an interesting comment

Movement control (tai-sabaki)

The Japanese words tai-sabaki are capable of two interpretations. In the wider sense they simply mean all natural body movements including the tsugi-ashi advance-retreat motions we have just been explaining. In the narrower sense they indicate the ways we manipulate and control our body’s motions.

He explained several items included in tai-sabaki:

  • Carriage of the head
  • Use of the eyes
  • Breath control
  • Use of the torso
  • Hand movements
  • Foot movements

These items are also explained by Senta Yamada in his book about aikido: The principles and Practice of Aikido. Some of Kudo’s comments, you also find in Tomiki’s Judo and Aikido.

A contemporary of Sentia Yamada was Tadashi Abe, a student of Morihei Ueshiba. In his books about aikido, he described the art of tai-sabaki as a three-fold action.

  • Koshi sabaki
  • Ashi sabaki
  • Te sabaki

Tadashi Abe studied at the Sorbonne in Paris and is also considered as one of the aikido pioneers in Europe.

Tai-sabaki – Movement Control

The word tai-sabaki is commonly used in Tomiki’s Aikido to describe the ability to avoid an attack. Of course, avoiding can be considered as a part of tai-sabaki. However, tai-sabaki has more to offer the practitioner.

In the words of Kazuko Kudo, Movement Control is the mantra to fully understand Tai-sabaki. Kenji Tomiki explained in fact the idea of Tai-sabaki when he talked about Tsukuri. This concept was developed by Jigoro Kanon the founder of Kodokan Judo. But again we must admit, most of the explanations are just words, so called buzzwords.

When we practise our exercises, one of the goals has to be the control of our movements. When practising with a partner, controlling the movements of the opponent becomes the goal. The attack is just the result of his movement.

Tsukuri or preparation

From “Judo and Aikido” by Kenji Tomiki:

Bringing your opponent’s posture and position into such a relation to yours as to make it easier for you to throw him is called tsukuri (preparatory action). Breaking your opponent’s posture and making it unstable is aite o tsukuru (to prepare the opponent) and assuming at that moment a position and posture convenient for using a technique according to the change in your opponent’s is jibun o tsukuru (to prepare yourself). Thus you must use the most adequate technique after making a thorough tsukuri.

Jibun o tsukuru

It is paradoxical to emphasize ukemi as a form of jibun o tsukuru, but by mental and physical understanding, the concept of “jukozo” or “flexible body” becomes more understandable.

It is a common fact, when a beginner comes into the dojo, he or she likes to know how to throw the opponent. The newbie is in most cases not interested in the fact, you can only throw someone if you can control yourself.

In the older days, ukemi training was one of the foremost methods for beginners to learn to do breakfalls and build up stamina. This was the explanation given to the beginner. It took several months to become more or less skilful in the art of falling. Ukemi or protecting the body is a very physically demanding exercise. When practised correctly and with full commitment, ukemi training becomes a cardio training with a lot of peak moments. Also the body becomes used for different kinds of impact when it hits the floor. The body creates a skill to avoid hard impact by using jukozo to distribute the impact to a bigger surface or into a larger body movement. A big rolling ukemi is such an example.

Aite o tsukuru

Preparing of the opponent consists in destroying the opponent’s balance before performing a technique and putting him in a posture where it will be easy to apply it. (Kenji Tomiki).

Without proper jibun o tsukuru, aite o tsukuru wil be very difficult and every attempt to throw the opponent will fail in most cases. Of course you can succeed by using extreme physical strength, but we are looking for a method useful for the lesser muscular practitioner.

Tai-sabaki becomes one of the pillars of aite o tsukuru together with the many exercises found in “sotai dosa“. The 7 balance disturbing exercises (shichi-hon-no-kuzushi) are another example of sotai dosa in the Tomiki Aikido training program.

Kokyu ryoku as a result of Taijū no dendō

taïjū = body weight – dendō = transmission, conduction

Kokyū-Ryoku (呼吸力, Breath Power) Is the concept of relaxed power generated from the tanden. There is an implication in the word kokyū that this type of power does not clash with uke. (From Wikipedia)

Kokyu is mostly translated as “breath”, but can be understood as the concept of “prana” in yoga. Although it must be mentioned that breathing is only a small part of the prana concept also called “life force”. Breathing is a dynamic process and is an integral part of our being as a living person.

Another definition can be found in a a popular Japanese book:

Aikido: Tradition and Competitive Edge

In a book written by Tetsuro Nariyama and Fumiaki Shishida – Aikido: Tradition and Competitive Edge – Kokyu-ryoku and toitsuryoku is briefly mentioned. Correct use of the body and breathing can develop focused power: toitsuryoku. Some basic movements are explained to develop this kind of power. These exercises are very basic and you will find them also in other aiki-arts.

Don’t Think, Listen to the Body

Written by Akira Hino is an attempt to create a method to develop a martial body, useful in the many martial arts lacking an understandable method for developing soft power. This method is used as a supporting aid in our research.

An introduction into the practical use of opposing isometric tension

Taijū no ido & Taijū no dendō“, the relationship between the two concepts was discussed by using some Tomiki Aikidō techniques and/or exercises. The article is based upon a workshop we did some time ago. More explanations are needed to deepen the knowledge of these important concepts

In 2017 we made a short videoclip about “manipulation of structure”. At that time we were not aware about the importance of Taijū no ido & Taijū no dendō, and in particularity the use of Taijū no dendō concept. It was briefly mentioned, but the understanding was not so deep.

During Corona-Covid19 time , more people perform solo-training. Unfortunately the focus is mostly oriented upon the sequence and the outer appearance. Of course there are some on-line video clips with more information about the inner development during solo-training. There is perhaps one disadvantage with on-line teaching: no hands-on experience.

The example of bringing Taijū no dendō concept into the training has the same disadvantage: no hands-on experience. If you need this hands-on experience, find someone in the near future to solve your problem and give answers to your questions.

This post is an attempt to describe a solo-training pattern with words and some pictures. It is not the ideal format, but hopefully the near future will bring enlightenment.

There are “5 Steps” to consider in this kind of training

  • Step One: Awareness and moving bodyweight
  • Step Two: Stepping by using bodyweight
  • Step Three: Basic Tegatana movements without stepping
  • Step Four: Basic Tegatana movements with stepping
  • Step Five: Sotai dosa with integrated Taijū no dendō concept

First step in studying Taijū no dendō

Moving body weight

Body weight can move in 3 ways

  • Vertical plane
  • Horizontal plane
  • Combination of vertical and horizontal plane

Becoming aware of the bodyweight is the first step to explore the basic idea in Taijū no dendō. Body weight can move up and down. Imagine a structure as in the picture. Sometimes reference is made to tensegrity also called Jukozo, a term used in Japanese architecture for flexible structures.

Sometimes reference is made to tensegrity also called Jukozo, a term used in Japanese architecture for flexible structures.

Bodyweight can be put on different parts of the feet. During ritsuzen or standing exercises, bodyweight can change in all directions.

Bodyweight can move forward, backward or to the sides. Basically it can move following a 360° pattern. Keep the vertical line straight. Don’t disturb this line by bending the body forward for example. After some time practising, you will experience the vertical line in the body.

Second step

Ayumi ashi

Using the knees to transmit the bodyweight into the opponent is not by bending the knees, but by lowering the bodyweight which creates kneebending. Chidori-ashi walking is an exercise without a partner to learn how to move the body weight.

Another concept in the the training is the concept of “opposing isometric tension”. When the body weight is moving forward, the direction is going down into the front foot, in particular the ball of the foot. This creates opposing isometric tension. When lowering the body weight and the heel is touching the floor, the power of the opposing isometric tension is moving into the floor and makes your posture more stable.

  1. Start with a chidori ashi posture. Hand to the side. Bodyweight backwards.
  2. After turning the body, bring bodyweight forward and create opposing isometric tension.
  3. Put bodyweight more to the heel and release opposing isometric tension in the foot and leg. Koshi is lowering.
  4. Lift back foot and move it forward
  5. Assume chidori ashi posture.

Repeat this walking several times.

Third step

Tandoku undo (static exercise)

In the 3rd step we will introduce basic hand/arm movement based upon the “godosa tegatana” or 5 basic tegatana movements. Integrating koshi-mawari is necessary to create full body movement. Of course Taijū no dendō concept is a part of the movement. There is no stepping involved yet.

Although the exercises are primarly influenced by godosa tegatana, the first exercise is “shomen uchi” and is a basic movement with an origin in swordmanship. Basic tegatana movement, also called Tandoku Undo is a set developped by Kenji Tomiki and Hideo Ohba.

The use of opposing isometric tension is also a start for “hakkei” or explosive power. When the opposing isometric tension is guided into the floor, there will be a rebound and this can be directed into the hands. As a simple example “shomen uchi’ with isometric tension. Five basic tegatana movements use the same isometric tension method to produce “kokyu ryoku”, power generated by Taijū no dendō.

Fourth step

Tandoku undo (dynamic exercises)

Combining stepping and basic tegatana movements.

There are basically 2 methods of stepping:

  • Ayumi ashi: discussed earlier in this post – see Second Step
  • Tsugi ashi: using opposing isometric tension can create a sudden step forward full of power.

Shomen uchi with tsugi ashi

In Tomiki’s Aikido, Tandoku undo has a lot of versions. Most recent version use “shomen uchi” as the starting movement. Shomen uchi is a vertical downward strike to the head of an opponent. There is a relationship with a vertical strike with a sword (kiri oroshi). In koryu no kata daisan, tachi tai tachi, the first kata is ai-uchi or simultaneous strike. In many Japanese martial arts, a vertical strike belongs to the omote-waza or the first set of techniques/movements.

Fifth step

Sotai dosa

Using Taijū no dendō concept during paired exercises. An example can be seen at the beginning of this post.

How to use Taijū no dendō?

Using Taijū no dendō is already discussed in the 5 steps mentioned earlier. Sometimes it is necessary to step out of the box and introduce Taijū no dendō in another situation. Because we don’t have always a partner to experience bodily contact in real-time, we can mimic situations during solo-training.

For example, imagine someone is grasping your wrist and you like to apply balance disturbing with the gedan concept from 7-hon-no-kuzushi.

Taijū no dendō gedan

The turning of the hand can be used in aiki-age (upward movement or jodan) or aiki-sage (downward movement or gedan).

The turning point is in the palm of the hand. When using the wrist as a turning point, the line of power will be broken. An example with “gedan”.

Balanced body frame: Shizentai

Shizentai

Tomiki100yrs 034Tomiki wrote many articles and books about Budo, mostly Judo and Aikido. In his writings, but also in his lectures he stressed a lot “shizentai” mostly translated as “natural posture”.
Shizentai is a posture neither limp or neither rigid. From shizentai we can move in any direction. If someone is pushing we can move away without changing the distance in our relationship with the opponent or partner.
The picture of Kenji Tomiki is sometimes used as “the” example for “shizentai”, but this is not completely correct. Shizentai is all about how your body is behaving during activity and rest. Tomiki’s picture is just one of many examples of shizentai.
Shizentai is a kind of neutral body structure, a balance between a tensed body structure and a slacked body structure.

Balanced body frame

A balanced body frame is not a fixed posture. It is a dynamic structure, and sometimes it balances between a 1-part body frame to a more multipart body frame. Both body structures are in a balanced status depending on the use of the structure in a specified situation.

It is also possible to have a “neutral” body frame, a structure when someone is touching or grabbing you and the opponent just feels your skin.
This kind of body condition is very convenient to hide your intention.

1-part body

1-part body frame

A 1-part body frame is used when we have to increase “momentum” by using more body mass.

Using gravity in a movement is a good example of the use of 1-part body frame.

By stretching up the body, a 1-part body condition is created. When the body is tilted slightly forward, a forward step is needed to keep balance. Momentum can transferred into the strike with the “tegatana”. The attacking arm is a part of the 1-part body frame, the full body weight will increase the momentum in the strike. Of course, the skill of rolling foot and tsugi ashi is needed to keep balance.

shomen ate old

Multi-part body frame

A 1-part body frame is very useful when we seem to have a lot of space to move around, but this is not always possible.

Our body has more possible options for moving and generating power. The skill of “rendo” is based upon using a multi-part body frame.

kyokotsu exercise 10

When the wrist is grabbed and twisted, the different parts of the body will allow the twisting. By allowing the twisting, energy is storing into the twisted body. This energy can be released by moving the different parts in a correct sequence.

TenshikeiThe sequence in a multi-part body frame

It is important to keep the interface of the grasping unchanged. This is only possible when the body has a neutral condition. Opponent just feels the skin of your wrist, but opponent has no access to the rest of your body. You just accept his power which doesn’t interfere with your balance and moving abilities.

The photographs are taken from a documentary:
Hino Budo by Akira Hino
The pictures are taken from Akira Hino’s book:
Don´t Think, Listen to the Body

Keeping the interface

Do not resist or try to modify the situation. If you do, you change the state of the interface (the gripped part), and change is immediately detected by the opponent who will adjust the grip and hold you more firmly. Keep the interface as it is.
The change of the interface is an indication that you’ve used your consciousness to resist intentionally. You may use your consciousness to feel, but never use it to think or plan otherwise it will be detected by the opponent. Keeping the body frame neutral is an important skill for all Budo Aikido practitioners.

Untwist the body by itself

As the twisted body untwist itself by releasing the stored energy, your elbow drops and bends, and your palm turns upwards. You may think it is advantageous to step forward and turn to the antagonist to use the weight of your body for resistance, but you’re advised not to do so. Do not try to move intentionally, for it will be overpowered by the opponent who is in a better position, he’s twisted your arm already. “Keep the interface as it is” is important here as well, for as soon as you try to use your intentional power, the state of the interface changes and the opponent will notice it immediately.

The “real skill” of Shizentai

Shizentai is a dynamic condition of being. There are no unnecessary tensions, there is no slack in the body. All actions are optimal, even during the “rest” action. Of course it takes time to develop such a skill.
Shizentai is a skill useful in all aspects of life and it must be practised until it is a part of your being.