You will recall from a previous post that the core of all learning is the identification of similarities and differences. One of the proven highly effective means of identifying similarities and differences is classification. Many in the martial arts think of classification as simply being an administrative exercise. They could not be more wrong, as I explain in my book on the science behind all fighting techniques:
Lackoff (1987) warns against such a dismissive attitude. He suggests that there is nothing more basic to our thought, perception, action, and speech than classification and that without the ability to classify we would not function at all, either in the physical world or in our social and intellectual lives.'
JDJ's Classification of Blocking Techniques
JDJ's classification of blocking techniques involves six categories: hard, soft, pushing, pulling, grabbing, and empty. Exploring those categories and the classification system itself is revealing.
Yoseikan Budo Kuzushi and JDJ's Classification of Blocking Techniques
The JDJ classification of blocking techniques was introduced into the mon system to complement the unbalancing from hand grips, but for moving attacks. This is seen in their use in the various sections in the mon grades, however, it is explicitly seen in the Unbalancing (Kuzushi) - Blocking (Uke) sections in 5th mon and 9th kyu (both part of the mon system; see previous post).
You will recall from the previous post that one of Nakayama's blocking possibilities is unbalancing the opponent with a block. Do the blocks in JDJ's classification unbalance an opponent with the blocking technique?
JDJ's Classification of Blocking Techniques, Unbalancing, and Pencak Silat
JDJ did not originally develop his classification of blocking techniques to compliment the tehodoki kuzushi. He developed it to classify the response to an attack in the pencak silat he taught. This classification was then introduced into his pencak silat grading system. In this way, JDJ was conceptualising 'blocking techniques' as being uke waza.
Uke Waza
Uke waza is often translated in karate as being blocking techniques, however, it actually translates as receiving techniques; techniques used to receive an attack.
In this way, uke waza includes evasive body-movements (EBM), aka taisabaki, and so-called blocking techniques.
The last sentence was in response to a comment received on my Facebook post sharing the previous blog post. I share their conception of taisabaki in that it repositions tori to execute a technique, however, they are only half right. The avoiding injurious contact with the body from an attack aspect of taisabaki can never be forgotten or minimised.
Taisabaki is taught within the JDJ teachings in terms of an EBM to avoid injurious contact with the body. In doing so, it does not necessarily reposition tori in an optimum position to execute a decisive technique. When I began instructing my students that taisabaki is used to avoid injurious contact with the body and to reposition in order to attack, the positioning, distancing, and timing problems they experienced previously tended to sort themselves out. It also changed their mindset from being prey trying to avoid being eaten to being a counterattacker, a fighter.
PS: Uke means to receive. Ukemi is often translated as breakfalls, however, it actually means to receive through or with the body. In this case, ukemi is a biomechanically accurate description of breakfalling techniques. The force applied to the body when landing from a fall is based on Newton's third law of motion: for every action there is an equal and opposite reaction. Newton's 'action' and 'reaction' means mechanical force. In the case of ukemi, the falling body applies force to the landing surface upon impact, and the landing surface applies a reaction force to the falling/landing body, which ukemi is designed to absorb in a way that reduces the risk of injury (see my book on the science behind all fighting techniques).
Unbalancing (Kuzushi) - Blocking (Uke)
You will recall from the previous post that an Unbalancing (Kuzushi) - Blocking (Uke) section was included in the 5th mon and 9th kyu gradings. Included in these sections were the demonstration of pushing, pulling, and grabbing block against a low punch and a brushing block against a downwards hit.
As explained in my book on the science behind all fighting techniques, mechanical force is defined as a push or a pull (see my post published in 2013 that explained the use of the mechanical concept of force to understand all techniques). Whenever an 'object' starts, stops, speeds up, slows down, or changes direction, a force caused that change in motion. As I explain in the aforementioned book, Jigoro Kano, founder of Kodokan Judo, was the quintessential martial arts biomechanist when he described kuzushi as being a push or a pull in his Kodokan Judo.
I cannot remember any defence included in the JDJ jujutsu grading system that uses this type of 'block', not in its purest form at least. An example of its practical use might be in a grabbing-pulling motion when unbalancing uke in a circular motion which is a common tactic in YB and aikido, and JDJ's jujutsu and aikido. If so, why not demonstrate that in the grading rather than a technique that is never used?
Brushing block is as described. It brushes the opponent's attacking arm, like brushing dirt of their sleeve. It does not deflect the attacking arm. It doesn't have to because the EBM has taken care of the problem of avoiding injurious contact with the body (see previous post) The attacking arm stays on course without interruption. See below for an illustration of a brushing block (ignoring the strike to the throat).
There is no 'grabbing'. There is no pulling. There is no pushing. How does a brushing block unbalance an opponent? After all, it is included in the section of the grading in which the grading candidate demonstrates unbalancing an opponent using a block? When I asked two of the senior instructors this question, it was suggested that the unbalancing comes from the 'brush' slightly adding to uke's forward motion thereby slightly unbalancing them in that direction. Being polite, that is the very definition of a shoehorned answer/explanation.
If that was a shoehorned answer/explanation, then the answer to the same question in relation to empty blocks is a shoehorned answer/explanation par excellence.
PS: I challenge all students who are engaged in training with JDJ ryuha were these gradings are still employed to ask their instructor how a brushing block unbalances an opponent, which it is supposed to do given that it is included in a section of the grading that examines unbalancing techniques.
Empty Block
JDJ's empty block is no block at all. It is an EBM used to avoid injurious contact with the body. Empty block is part of JDJ's blocking techniques classification but is never mentioned in JDJ's jujutsu grading system. Why not?
JDJ's classification of blocking techniques was used in the JDJ jujutsu grading system to classify unbalancing techniques used against moving attacks. How does an empty block, no block at all and only an EBM, unbalance an opponent? When I asked this question of the senior instructors, it was suggested that by not being where the opponent expected, the opponent would topple forward having not met the expected resistance to the force applied by their attack. That may well happen, however, are you going to base your tactics in a physical confrontation on that assumption?
Hard and Soft Blocks
The hard-soft blocking techniques dichotomy is an oft discussed dichotomy in the martial arts and martials arts literature. It is usually discussed in terms of explaining the superiority of soft blocks over karate hard blocks. Often this argument is supported scientifically with the aid of the concept of forces, an argument that is flawed and shows the lack of understanding in terms of theory that many in the martial arts have.
Examples of the hard karate blocks are the basic high, middle, and low blocks of karate. The example given of soft blocks is deflections. It is suggested that more force is required to be applied with the hard karate blocks than with the soft deflections.
What the arguers do not understand is that these hard karate blocks are in fact deflections (for the most part; see below).
The argument is often that the hard karate blocks apply force against force whereas deflections do not, thus the latter being more efficient. The hard karate blocks do not apply force against force. The apply force at an angle to the attacking limb, thus deflecting the trajectory of the attacking limb. More force is applied to deflect the attacking limb in this case, therefore the only question is, why is more force applied in the case of hard blocks than soft blocks? Is the answer found in Nakayama's blocking possiblity #1 which is the block being used as an attack to discourage further attacks (see previous post)?
What is a 'block'?
Let's go back to the beginning ask the basic question: what is a block? The general definition is to make the movement or flow difficult or impossible. It's to put something in the way of something.
The martial arts has a tendency of using terms without reference to their general meaning. There is no better example than that of throws and takedowns in the martial arts. A definitive distinction between these two classes of techniques is abscent in martial arts theory, and those proposed are either incomprehensible or plain wrong, until the one that I proposed in my book on the science behing all fighting techniques. My definition is supported by the general definition of throw and takedown, which the martial arts seem to have ignored.
The abovementioned argument in support of the superiority of soft deflections over hard karate blocks is that the latter apply force against force. The above presented a counter-argument, however, there are exceptions.
Are there true blocks in the martial arts, ones that apply force against force, ones that are put in front of an attack? A shin block is one.
Gracie and Danaher distinguish between evasion and blocking in their Mastering Jujitsu (2003):
Evasive skills allow you to avoid strikes without contact. There are easy on your body and require proficient motion skills. Blocking allows you to safely absorb impact (rather than avoid it), and it requires sound conditioning and stance skills. (p. 77)
From your fighting stance, turn toward the incoming blow as you simultaneoulsy step away from it slightly. Bring your forearms together and tuck your chin, crunching your upper body inward, like a turtle retreating into a shell. (p. 78)
Aside from never having seen this block used or taught, other than in boxing where huge gloves provide the protection, why is the double-forearm block being used when the step away, the EBM, has taken the defender out of range of the attacker? Even if there is a valid answer, that question should always be asked when a block is used in conjunction with an EBM.
Returning to karate hard blocks. In addition to being deflections, they can also be true blocks depending on the direction of the attack and the body position of the defender. For instance, age uke (rising block, aka high block) is a deflection against a punch but is a true block against a downard hit with no EBM employed. A low block is a true block employed against a low roundhouse kick.
The Dog's Breakfast
You can see that the concept of blocking techniques as applied in the JDJ jujutsu mon grading system is a bit of a dog's breakfast, as it is in the martial arts in general (as I demonstrated in the chapter on blocking techniques in my book on the science behind all fighting techniques). But what to do about it? That is the question that is being raised throughout this examination of the development of the JDJ jujutsu grading system. What would you do?
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