Monday, August 27, 2012

Five Elements Exercise


AIKIDO strives truly to understand Nature, to be grateful for her wonderful gifts to us, to make her heart its heart, and to become one with her. This striving for understanding and the practical application of the laws of Nature, expressed in the words Ai and Ki the fundamental concept of the AIKIDO. Indeed, it was the starting point of the founder himself, and it is the reason that although he was nearly 80 years old, he continued his studies to perfect the art he originated.
In this article you can find Katsujinken Dojo exercise how to implement five elements in your Aikido practice.

Ground

The movement style of ground may seem slow but it is actually patient. Try moving your hand in a foot-long arc, and, as your hand moves, feel each inch of that arc. Remain aware of each inch of movement, knowing you are able to stop or reverse the movement at any second.
To practice ground, stand as if your feet are rooted to the earth, like a tree with roots going deep into the soil. Feel the solidity, stability, and security that this stance brings. Now practice moving with this same sense of solidity and stability. Remain aware of your hara, your legs, and your feet. Feel your energy flowing through your legs into the ground. Even as you move, your downward flowing awareness will help you remain firmly rooted in the earth. You are solidly grounded at every point in performing each technique. No matter what you partner might try you cannot be easily unbalanced or countered.

Wind

In contrast to ground, feel your energy rising through your spine and out through the top of your head. This upward flow allows you to move more lightly, easily, and quickly.
There is a theory of the basic principles of wind. It`s taught us that a prerequisite for free and efficient movement is the natural upward lengthening of the spine. A core practice is the following formula: “Let the neck be free to let the head go forward and up, to let the back lengthen and widen.” The forward and up feeling in the head is as though the head is a balloon, floating gently upward toward the ceiling.
Wind teaches us to move lightly and to hold a weapon or a partner with a light, sensitive grip.

Water

The movement quality of ground is down and solid, and the movement of wind is upward and light. The movement of water is circular and also includes a yin backward flowing. One way to practice this is to step forward on your right foot, into a right hanmi position, and focusing your attention on drawing back your left hip. Whenever you move one hip forward, you automatically move the other hip backward. The opposite is also true—whenever you draw one hip back, you are moving the other hip forward. Understanding this relationship imparts a circular quality to your movement.
This quality of flow is that of water. It is also strongly yin. The drawing movement of your back hip will draw out your partner’s attacking movements, and will tend to unbalance them. Entering with an awareness of your back hip will give you a sense of flowing around an obstacle. That obstacle might be a strike, a grab, or some other attack. You can also sense a flowing around your partner’s power, like water flowing around a rock, rather than opposing force with force.

Fire

Fire is much the opposite of water. When you move forward, keep your awareness on your front hip and also on the whole entering side of your body. In practicing Aikido, keeps your attention constantly flowing toward your partner. You will find that fire is like a strongly flowing river that carries you toward your partner. It will enable you to move more swiftly and more powerfully.
Many students learn fire more quickly if they make an exclamation while moving forward. A positive exclamation also balances the tendency to think of fire as only aggressive or violent. Any powerful emotion has a strong fire component.

Void or Emptiness

This is by far the most difficult and most advanced of the elements. It pays to begin with the first four elements and to practice void only after becoming comfortable with them.
In learning to move in void, first balance yourself, and balance the four elements in yourself. Feel your legs and feet, feel a solid downward sense of ground. Feel you’re back relaxed and free, your head light and floating upward, a featherweight, floating sense of wind. In your left side feel yin/water (and the readiness to draw in any possible attack). In your right side feel yang/fire (and the readiness to extend outward or forward). Be aware of all that is in front of you. Balance this with a strong sense of your back and all that is in back of you.
Now, move freely, holding on to the feelings of up and down, right and left, forward and back. One direction may be stronger at times, but even then the more powerful direction is always balanced somewhat by its opposite. Remaining aware of back is particularly helpful. We all tend to draw all our energy forward and out of balance. Void includes a sense that you are surrounded by a sphere of awareness, a sphere that helps you remain balanced, aware, and effective, no matter what happens around you.



Thursday, August 16, 2012

The Fundamental Principle of the Circle by O-sensei


A Lecture by O-Sensei Morihei Ueshiba

Aikido technique is structured on circular movement, for harmony is brought about and all conflict resolved through the spirit of the circle. The response of the body, mind and spirit to the principle of the circle is vital to the creation of technique. A circle encloses space, and it is from the perfect freedom of this emptiness that ki is born. From the center of this birthplace, the creative processes of life are joined with the infinite, immeasurable universe by the spirit. The spirit is the Creator, the eternal parent giving birth to all things. The Budo of Aikido springs from the mastery of the spirit of the circle. The essence if this Budo is to embrace the complementary action of cause and effect and to draw into yourself all things as if they were held within the palm of your hand. You have a spirit, therefore you must realize that each person has a spirit. When the life processes are connected with the spirit and the fundamental principle of the circle is given birth in Aiki, all things are led to completion through the circle. All things are freely created by the circle. The secret of the circle is to create technique by piercing the very center of space

Wednesday, August 15, 2012

Basic Aikido-Stance and Movements


AIKIDO STANCE
          
HANMI no KAMAE - HALF BODY STANCE
                      
1. ELEMENTS OF HANMI no KAMAE

    An oblique, triangular stance with one foot forward and the other to the rear, body facing about 45⁰.
    Frontal area is reduced and vital spots are turned away from the opponent.
    Knees are slightly flexed, especially the front knee.
    Balance is maintained and centered on the lower abdomen (the tanden, or "one point").
    Mobility is maintained in all directions, ready to perform any of the basic footwork patterns.

                
THE FIVE BASIC KAMAE RELATIONSHIPS

Ideally Aikido has no stance: a natural body posture called shizen-tai is best.  For training purposes, however, we usually employ a stance based on that use in Japanese swordsmanship.  There are both right and left basic stances in a few variations.  There are also two possible relationships between your stance and that of your partner.

THREE BASIC VERSIONS OF HANMI NO KAMAE

 
BASIC RELATIONSHIPS BETWEEN TWO PEOPLE IN HANMI no KAMAE

BASIC AIKIDO MOVEMENTS

ASHI-SABAKI - FIVE BASIC FOOTWORK

There are three types of footwork: IRIMI (Enter), TENKAN (Turn), and TENTAI (Pivot)

ELEMENTS OF IRIMI - Irimi-Isshoku (One-step Entry)

a.Triangular stance
b.Each type is performed as one step.
c.Enter to the "Blind Spot", shikaku
d.Both feet must move during each step!
e.Get off the Line of Attack

Note:  The principle of Irimi-Isshoku implies that you must reach the blind spot behind your partner in a single motion.  In these diagrams, foot movements are numbered; 1, 2, 3....  However, each type of stepping illustrated is nonetheless a single step.  For example, ayumi-ashi is considered one step wherein both feet move.  This principle is important for getting off the line of attack.  This long, straight arrows in the following diagrams represents this attacking movement of your aite.


 
TE-SABAKI - FIVE BASIC HANDWORK 

ELEMENTS OF TE-SABAKI (HANDWORK PATTERNS) 

a.Head erect over relaxed neck and shoulders 
b.Open the hands and extend fingers as if lightly holding a large ball with both hands  
c.The natural curve of arms is maintained during movement  
d.Move up from the thumb and down from the little finger  
e.Get off the Line of Attack 


THE FIVE BASIC HANDWORK PATTERNS (TE-GATANA NO SOSA) 

In Aikido, the hand is often referred to as the "te-gatana" (literally the "hand sword").  We form this "hand-blade" by holding our fingers open and extended so that the heel of the palm and bottom of the arm are elongated while the top of the arm remains relatively relaxed.  In this manner the natural curve of the arm resembles the shape of a Japanese sword, the katana.  Sometimes the basicte-sabaki are referred to as the te-gatana no sosa, or "the use of the hand-blade".


Tuesday, August 14, 2012

Founder’s Aikido

O-sensei teaching methodology that was out of synch with post-war Japanese society, his strong religious orientation, his frequent travels and irregular schedule made it difficult for most of his students to receive in-depth instruction from the Founder. To this can be added the fact that aikido developed and spread in Japan during an era of peace that later blossomed into a time of unprecedented economic prosperity. In such a societal setting devoid of the constant spectre of war and a sense of physical danger, aikido training in a period of peace lacked the intensity and focus of the uneasy times of the pre-war era. Also, the practice of judo and kendo was widespread before the war and taught in school. This meant that those students who learned from O-Sensei in the pre-war era had a much better level of physical and mental preparation when embarking on their training compared to those after the war.
To be sure, there have been some excellent technicians and inspiring teachers during aikido’s early years of growth starting in the 1950s. There have been those, too, who have spoken of the moral dimension of aikido and its role as a vehicle for the betterment of individuals and society. Nonetheless, the hyperawareness, sharpness, and unbridled exuberance displayed by the Founder while demonstrating his art can hardly be seen anywhere. In a similar vein, the Founder’s religious perspective and view of himself as an instrument of the “kami” whose purpose is to realize peace and brotherhood on earth is too grandiose a vision for most aikido teachers who see themselves mainly as providing self-defence and exercise training for the public.
No one will argue that there is no substitute for long years of dedicated training, the Founder being an outstanding example. But beyond that, what are those special characteristics of O-Sensei’s art that set him apart from the generations of students who followed in his footsteps? 

Posture

To begin with, when viewing footage of the Founder one is struck by his excellent posture at all times. Good posture is, of course, common sense in martial arts and nearly any physical or sporting activity one can mention. Practice of the sword develops good. Founder’s keen his interest in the sword from the mid-1930s.

Obviously, correct posture is inextricably linked to good balance and the ability to relax. The Founder’s free and flowing movements begin from an erect posture absent any trace of rigidity. He is therefore free to move in any direction, enter or turn in the execution of techniques.

Awase
Blending with uke

The concept of “blending” with one’s opponent in aikido is frequently used when teachers describe the mechanics of a technique. By this what is usually meant is a movement timed to coincide with the speed and direction of uke’s attack. Once this has been achieved, as the idea goes, nage then brings uke into an off-balanced position and executes a throw.
Actually, this is quite a superficial explanation of the concept of blending as understood by the Founder. The reason is that, in this scenario, it is uke who controls the timing and direction of the attack while nage “reacts” in an attempt to blend or match uke’s movements. Against a skilled opponent capable of very rapid movements, there is simply not enough time to respond in this manner.
A much higher level is for nage to seize the initiative by forcing uke to match nage’s “psychic” lead. Uke cannot muster a meaningful attack against the psychological pressure applied by nage. Examples of the strategy referred to here might be a natural stance accompanied by subtle body shifting, metsuke or eye contact, or alteration of breathing rhythm to name a few possibilities. Under such conditions, uke must deal with a changing energy field and alter his attack to compensate.

Kiai / Atemi
Kiai - combative shout

The term kiai is sometimes talked about in conjunction with aikido training and refers to a “combative shout” used to disrupt or neutralize the attack of an opponent. The use of this powerful vocalization technique corresponds to the exhalation of breath and concentrates the body and spirit of nage at a specific point. The end result of a well-executed kiai is a disruption of uke’s ki flow and a dissipation of his attack. Often uke’s movement will be frozen for a brief instant thus presenting nage with an excellent opportunity to apply a technique.
O-Sensei frequently used kiai as a tool to set up and control his uke. He used it particularly often when demonstrating with the sword. Ironically, the Founder’s use of this technique is so effective that his uke’s attacks often appear half-hearted because they have been interrupted by his well-timed kiai.
The Founder can be seen applying atemi or “preemptive strikes” right up until the end of his life. But today, atemi have fallen into disuse in aikido. It is believe this is due to a misunderstanding of its purpose. Atemi is an action used to pre-empt uke’s aggressive intent through a distractionary manuever in the form of a strike. The use of atemi is not for the purpose of hitting or “softening up” uke prior to performing a technique. Its role is similar to that of the kiai in that it disrupts uke’s concentration.

Beyond “Sensen no Sen”
“Controlling your opponent without trying to control him”

A traditional explanation of strategies in a Japanese martial arts context often involves a discussion of three levels of combat initiative: “go no sen,” “sen,” and “sensen no sen.” These strategies are defined as follows: “Go no sen,” meaning “late attack” involves a defensive or counter movement in response to an attack; “sen,” a defensive initiative launched simultaneously with the attack of the opponent; and “sensen no sen,” an initiative launched in anticipation of an attack where the opponent is fully committed to his attack and thus psychologically beyond the point of no return. The latter strategy is generally considered to be the highest level in the classical martial arts scenario.
The Founder’s concept of aiki strategy goes far beyond the dimension of psycho-physical confrontation. In an interview conducted in 1957, he expresses the concept in these words:

“It is not a question of either ‘sensen no sen’ or ‘sen no sen.’ If I were to try to verbalize it I would say that you control your opponent without trying to control him. That is, the state of continuous victory. There isn’t any question of winning over or losing to an opponent. In this sense, there is no opponent in aikido. Even if you have an opponent, he becomes a part of you, a partner you control only.”
The key concept here is that what would normally be construed as a physical confrontation with a would-be attacker is reframed as a harmonious interaction. Uke’s fighting impulse has been overcome and enveloped with love. In other words, the goal is to live one’s whole life on a different plane of consciousness in harmony with one’s surroundings and the people one meets. Seen in these terms, aikido becomes a metaphor for living in peace while possessing the skills necessary to neutralize and win over a violent opponent.
This is a high-level ideal that is attainable only through long years of training to develop a heightened sensitivity to people and happenings in one’s surroundings. It further involves developing a set of spontaneous skills consisting of physio-psychological responses suited to any conceivable kind of human interaction. The Founder described this state as “Takemusu Aiki”—the highest level of aikido where one is capable of spontaneously executing perfect techniques in response to any circumstance.

Ame no Ukihashi
“Bridge between Heaven and Earth”

The Founder saw the world from a Shinto viewpoint and was especially influenced by the Omoto religious sect. One of the expressions he used frequently in reference to his role as the creator of aikido was “Ame no Ukihashi.” This means literally the “Floating Bridge of Heaven.” It is the bridge that connects Heaven and Earth. Therefore, standing on Ame no Ukihashi means standing between Heaven and Earth. In the Kojiki, the ancient Japanese chronicle, it is recorded that two deities stood on this bridge and started their first work of creating countries (islands).

This Ame no Ukihashi—the link between Heaven and Earth—was located wherever O-Sensei might be at a given point in time executing works on behalf of the kami or deities to bring about a harmonious, peaceful world. In other words, this is the mission of aikido. O-Sensei’s elaborate jo kata consisting of up-and-down and spiraling movements that he would perform at demonstrations symbolized this link with divine energy emanating from the heavenly sphere.

Up and down, to and fro

The Founder was adept at dictating the terms of a would-be attacker’s movement. Among the ways he would achieve this end was to execute various body manuevers with exquisite timing just before an attack. Using up and down, side-to-side, and slipping movements, he was able to make it virtually impossible for an attacker to launch an aggressive movement from a stable posture. Uke’s mental composure would be disturbed through such leading movements to the point he lost any will to attack.
Sometimes the Founder would raise his arms high up or even leap into the air as he approached his partner leaving the latter virtually helpless as he tried in vain to muster an attack.

Leading and redirecting
Leading uke

O-Sensei made frequent use of arm extensions and circular hand movements as a prelude to physical contact with his uke. Such leads served the same effect as the body shifting movements described above. The attacker’s attention would be drawn to the Founder’s hand and arm motions and any impulse on his part to attack was preempted. These leads when carried to completion would result in spiral and up-and-down movements that would be a prelude to a throwing technique or joint manipulation and pin.

Changing directions

Another typical manuever used by the Founder involved a set-up and reversal of direction. This would take the form of a body movement or subtle body shift from one side to the other prior to entering. His taisabaki would force uke to commit to a movement in one direction thus allowing O-Sensei to enter from the side as uke proceeded forward locked along the initial attack line already abandoned by the Founder.

Aikido and the sword

The Founder showed a great interest in the sword throughout his martial arts career. He even received a Yagyu Shinkage-ryu sword certification from Sokaku Takeda in 1922 although the exact content of his sword training under Sokaku is not known. Later in 1937, he officially joined the Kashima Shinto-ryu classical school which had an influence on his experimentation with the sword especially during the Iwama years from 1942 to about 1960.
O-Sensei made no attempt to codify or develop sword kata to be used formally in aikido training. The sword was for the Founder an extension of divine power to be used only for life-giving purposes. His sword work—and the same can be said of his jo—was merely a different tool for the expression of aiki movement based on the same universal principles as taijutsu techniques.
In that the sword is an extension of the body, certain uses and principles of movement are more clearly understood in comparison to empty-handed techniques. Often the Founder would illustrate a movement or principle both with and without the sword during training in order to clarify their interrelationship.
In this light, comparisons of O-Sensei’s swordwork with classical sword schools are completely beside the point as his intention was not to impart battlefield techniques but to show how divine energy channels through the human body, the space around it, and all throughout the Universe.

Kihaku
“Kihaku” - Spirit

“Kihaku,” usually translated as “spirit” or “vigor,” is a term that can be used to describe the overall energy level or focus evident in the Founder’s aikido. There was an “electric” or “charged” quality in his movements that was so palpable it could be picked up even by an observer. All of the characteristics of O-Sensei’s aikido that we have alluded to above taken together can be summed up as kihaku. It is a dynamic intensity born of total focus in attunement with one’s surroundings.

The Founder’s art was truly magical. Even by watching the old films that preserve his movements one is captivated by his commanding presence, joyful ebullience, and complete mastery of energy and space. Such a level of expertise could only be attained by one who has reached a state that many would hasten to call “enlightenment.” In any event, he without doubt transcended normal human consciousness and entered into a state of elevated alertness and sensitivity. This state of oneness is a goal that should stand as a shining example for aikidoka everywhere who are touched by his timeless message. Why should we settle for anything less in our own training.

Saturday, August 11, 2012

Mu-Shin and Mu-Kamae

Mu-Shin

Mu-Shin or Empty Mind is concerned with a mental element of one’s ability to respond in a given challenging situation.For better and simpler understanding of this concept, one could refer to the Japanese way of explaining ideas: ‘“no” can mean “nothing” and, at the same time also means “everything”’.

Someone might compare Mu-Shin to the blue part of the ancient Scroll of Heaven that represents power of water. Water represents softness: getting around, through, under or above any obstacle it finds in its way; and yet, simultaneously maintaining focus and not deviating from its natural course. To translate this analogy into the world of combat, one’s mind should have a “floating” character that is not attached to anything concrete and yet it must remain focused. Any preconceived techniques or strategies in one’s mind will constrain the ability to react; thus exposing one to a greater likelihood of potential defeat.

As such, one’s mind should be devoid of any firm fixation to expected techniques from one’s opponent. Instead, one should allow uke to decide what attack or technique to use. In other words, the concept of a “floating” mind will greatly assist in understanding of the old phrase “always expect the unexpected”.  

Mu-Kamae

The concept of Mu-Kamae or Empty Stance is built upon the same philosophical foundation as Mu Shin. However, this concept deals with the physical element of one’s ability to respond in a given challenging situation. Involvement in a combat situation requires one not to reveal one’s intent to his or her opponent. The less signals one sends, the more difficult it will be for the opponent to read him. Shizentai (standing with no intent with the feet shoulder-width apart and weight evenly distributed on both feet), or neutral stance, will prepare one for quick movement when attacking or defending. Even a slight deviation from Shizentai will potentially put one into either, the hidari or migi gamae stance, consequently enabling an opponent to read one’s planned move; in addition, this will place one into disadvantage by slower ability to respond. This ultimately means that one should not be in any kamae when starting.

Mu-Kamae is claimed to be “the best all-around posture, as from here it is easy to change stance very quickly to adapt to any attack”.  




Thursday, August 9, 2012

Aikido secret - Kamae

 Pre-war technical manual published in 1938 by Aikido Founder Morihei Ueshiba,created for Prince Kaya Tsunenori, member of a collateral branch of the imperial family. Kayanomiya would eventually become Superintendant of the Army Toyama School - where Morihei Ueshiba would act as an instructor before the war.


The original Japanese text:
 
第二 準備動作
(一)構
氣勢ニヲ充實シ足ヲ六方ニ開キ半身入身合氣ノ姿勢ヲ以テ敵ニ對ス(第一圖)
總テ構ハ時、位置、土地ノ高低、其ノ時ノ勢等ニ因リ惟神ニ起ルモノニシテ常ニ構ハ心ニアルモノトス
足ノ踏ミ方ニハ外六方、内六方及外巴、内巴アリ練習ノ際ニ傅授ス
注意
練習ノ際シテハ敵ノ構、敵トノ間合ヲ考ヘ左或ハ右ノ構ヲ用フ動作ノ終リシ時兩足ハ常ニ六方ニ開キアル如ク練磨スル要ス
敵ニ正對スルハ隙多キヲ以テ不利トス

English translation:
 
Section 2: Preparatory Movements
(1) Kamae
Fill yourself with Ki power, open your legs in six directions and face the enemy in the hanmi irimi posture of Aiki (see Figure 1).
When assuming any stance, align yourself with the principles of the Kami according to your position, the level of the terrain and your spirit at that time, and always keep this stance in your heart.
In footwork there is an external six directions and an internal six directions as well as an outer spiral and an internal spiral, this will be taught in practice.

Caution:
Concerning the stance of the enemy in training.
Be mindful of the distance between you and the enemy and assume a left or right stance. At the end of each movement always open both legs in six directions, it is necessary to train this.
If you face directly towards the enemy there will be many openings and you will be at a disadvantage.

"SIX DIRECTIONS" is a common term in Chinese internal martial arts. Take a look at Liu Mian Mo Li (六面摸力) in Yiquan, for a good example - a force balanced through your body in six directions. In this case we're talking about basic stability in all directions - something that makes all kinds of sense in terms of standing up and walking in a martial situation.

Inner and outer spirals through the legs and body are also commonly described in Chinese internal martial arts. Here is a diagram and excerpt of text from "Illustrated Explanations of Chen Family Taijiquan" by Chen Xin, the emphasis of the underlined section is mine.
Coiling power (Chan Jin) is all over the body. Putting it most simply, there is coiling inward (Li Chan) and coiling outward (Wai Chan), which both appear once (one) moves. There is one (kind of coiling) when left hand is in front and right hand is behind; (or when) right hand is in front and left hand is behind; this one closes (He) (the hands) with one conforming (Shun) (movement). There is also one (coiling) that closes the inside of the left (side of the body) and the back of the right (side of the body), and another which uses the through-the-back power (Fanbei Jin) and closes towards the back. All of them should be moved naturally according to the (specific) postures.
Once Qi of the hand moves to the back of the foot, then big toe simultaneously closes with the hand and only at this moment (one can) step firmly.


Hard as it is to believe, there has never been a commercial re-publication of the text of "Budo" in Japanese. The only people in Japan who have read "Budo" are those that have gotten hold of the original publication or a homemade copy.  Even Morihiro Saito, who, it could be argued, spent more time alone with Ueshiba after the war than anybody else, was astonished to learn of this text!

Oyo Waza and Henka Waza

Kihon Waza is the “basic technique”; the pure form executed when you receive an attack, or when you are being grabbed firmly. The Founder recommended that this level – Kotai – be studied intensely until Sandan (3rd dan or 3rd degree black belt). In Kihon Waza no variation either in the execution or direction of the technique is permitted.

Ki No Nagare Waza includes all the “flowing techniques”, or techniques executed in motion. Tori blends with his partner’s attack or grab and executes the controlling or throwing technique without interruption till the end. There are different and increasing levels of Ki No Nagare Waza for each series of techniques. The Founder recommended beginning the practice of Ki No Nagare Waza only from Sandan onwards.

Oyo Waza literally means “techniques of application”, that is to say when you are grabbed or attacked in a particular or disadvantageous way, or by a very strong opponent, or by a taller or shorter opponent, you are required to “adapt” the basic technique without significant variations.

Henka Waza means “techniques of variation”. In this series, which are considered advanced techniques and should only be practiced once the basic techniques (Kihon Waza) and the flowing techniques (Ki No Nagare Waza) have been consolidated very well, it is possible to recognize the main principle of the basic techniques from which they are derived, but the execution is either completely or slightly different.

Kanren Waza is comprised of a series of “linked techniques”. This means, for example, that while Tori is executing a basic technique, the situation changes, Uke reacts in an unanticipated way, or falls and then gets up again; Tori now has to continue by applying another technique. During the execution it is possible to link more than two techniques together.

Kaeshi Waza literally means “techniques of reaction or of response”. The Founder considered these techniques to be secret (Himitsu Waza), not to be shown in public and to be taught only to a few, very trusted students toward the end of their training life. This tradition, not only typical of Aikido, is derived from the fact that a Master, even if highly skilled, could run the risk of encountering an opponent of superior skill, or may encounter one of the most painful conditions: confronting one of his own deshi (students). This series of very special techniques represented the last chance to win and survive. Usually, Kaeshi Waza are applied when the opponent makes a mistake or if he hesitates and, if executed in a proper way, they do not allow a further reaction from Uke.