Kata and Bunkai — a Programme With a Logbook
An interpretation that only works with a compliant partner is not tested but performed. A procedure that makes failures visible.
Contents
Category and starting position
This is a programme in the training-doctrine category — it has no measurement basis, and that must be said with particular clarity here. The obvious study, whether practitioners who train bunkai perform better in free fighting than those who train only kumite, does not exist. That is already stated in the article Kata and Kumite.
And something else sets this subject apart from all the others: the object itself is to a large extent reconstruction. When karate entered Okinawa’s school instruction from 1901, it was simplified for mass teaching, and the application layer did not come along in many lines — the datable moment is set out in Okinawan Karate.
A programme that glossed over this would be dishonest. A programme that therefore said nothing would be useless. So: we practise — and the uncertainty is turned into the procedure.
The falsification condition, and why it needs a logbook
In the punching structure programme the test was easy because the device answers. Here a human answers — and humans are polite. That is the problem:
An interpretation that only works because the partner leaves his arm extended is not tested. It is performed.
To this comes a second, worse mechanism: retrospective adjustment. Try an application, fail, and then change the interpretation until it fits, and you have tested nothing — you have produced an explanation. That is the commonest way bunkai work becomes worthless, and it happens without ill intent.
The countermeasure is the core of this programme:
The interpretation is written down before it is tested.
That makes the falsification condition checkable per session:
- If the application does not work against a resisting partner, the interpretation is wrong — not the partner uncooperative.
- If after six months the logbook contains not a single discarded interpretation, nothing is being tested, only confirmed. That is the most reliable warning sign this programme knows.
- If an interpretation works only with one particular partner, it is tied to that person’s build rather than to the kata.
Point 2 cannot be argued away: a logbook without failures is a logbook without testing.
Where the prescriptions come from
| Prescription | Origin |
|---|---|
| Bunkai as a training form | Okinawan practice; in Japan after 1901 frequently not transmitted along |
| Old sources as touchstone | Funakoshi 1922/1925, Mabuni, the Bubishi — treated elsewhere in this corpus |
| One kata over a long time rather than many | Okinawan practice |
| Escalating resistance in stages | general training methodology, not specifically documented for martial arts |
| The logbook | my own construction. It appears in no tradition — it is the substitute for the missing measurement. |
The four stages
Stage 1 · One kata, one sequence
Prescription: one kata, and within it one sequence of three to five movements. Not the whole kata, not several.
Why: bunkai work almost always fails on quantity. Interpret a whole kata and you produce thirty claims, test none and keep all. Three movements are few enough actually to bring against resistance.
Which kata: the one you have practised longest — not the most interesting. Familiarity frees the attention for the application.
Exit: the sequence is secure and can be performed at any tempo, including very slowly.
Stage 2 · Write the interpretation down
Prescription: write it down before you try it:
| Field | |
|---|---|
| Date | |
| Kata / movements | |
| Assumed attack | how does the partner grab or strike? |
| My interpretation | what does the movement do? |
| Expected effect | what should happen to the partner? |
| How I will see that it does not work | |
| Result after the test | |
| Kept / discarded / changed |
Why the sixth line matters most: it is precisely the one you want to leave out. Anyone who does not say beforehand how they would recognise a failure will not recognise one afterwards.
And a rule against your own convenience: changing the interpretation after the test is allowed — but as a new line, not as a correction of the old one. Otherwise the failure disappears from the record, and with it the test.
Exit: five interpretations written out in full, including the sixth line.
Stage 3 · Escalating resistance
Each interpretation passes through four stages. Fail one and you do not go further.
| Stage | What the partner does | What is tested |
|---|---|---|
| a | grabs as agreed and lets himself be led | whether you can do the movement |
| b | grabs as agreed and holds on | whether the interpretation works mechanically |
| c | grabs as agreed and responds freely | whether it survives a thinking person |
| d | grabs differently from what was agreed, in the same area | whether it hangs on the kata or on the agreement |
Stage d is the real test and is skipped most often. It is the reason many bunkai demonstrations look impressive and prove nothing.
Exit: for each of the five interpretations a result stands in the logbook. Expect the majority to fail at c or d. That is not a failure of the programme but its yield.
Stage 4 · Keep or discard
Prescription: every interpretation gets a decision. Discarding is valid and frequent.
And the prescription that stings: a discarded interpretation is not rescued by a better explanation. Reinterpret a movement three times until one reading holds and you have not understood the movement but exercised your inventiveness.
What to do with unclear movements: leave them. The kata is an archive, and an archive may contain entries nobody can currently read. An honest note — “no tenable interpretation found” — is worth more than an invented one.
Then: new sequence, back to stage 1. The programme runs in rounds and has no end — but it does not grow either. It stays at one sequence at a time.
Counter-positions
Kata is useless gymnastics. To be taken seriously, and supported by demonstration bunkai: if applications are only shown with compliant partners, an outsider rightly sees theatre. This programme is built as an answer to that — but if after months the logbook shows almost nothing but failures, the objection is right for this kata, and that has to be borne.
Bunkai is the secret true meaning of kata. For some interpretations there are good arguments from old sources; others are modern reconstruction. Anyone not saying which is which is advertising.
Competition kata is the real karate. A legitimate position with its own rules. It simply answers a different question — and the rule book itself does not claim to apply the kata.
Without a teacher this is nothing. Largely to be agreed with. What the programme can do is test what a teacher says — and that is not little, because it makes the standard answer “it was always so” checkable.
The logbook is bureaucracy. Possibly. It is a bet that writing down prevents retrospective adjustment. Anyone who after three months experiences it as pure burden should drop it — but then the question remains how they distinguish failures from successes.
Safety — without exception
Bunkai is more dangerous than kata and more dangerous than competition kumite, because kata contains precisely the techniques competition forbids.
- Locks against wrist and elbow only slowly, with an agreed tap. Whoever taps is released at once — no queries.
- Nothing at the neck. No techniques against throat, neck or nape with speed or pressure. That is the one category in which a mistake does not heal.
- Throws only if both can fall. The precondition is breakfall training, not good will — see the breakfall programme.
- No resistance above stage c without protective equipment where strikes to the head are involved.
- No locks on children or adolescents. Growing joints, and no child reliably says stop in time.
- Change roles after every interpretation. Attack only and you learn half the matter; defend only and you get used to an attack that does not exist in that form.
What this programme cannot do
- It proves no interpretation. It can show that one held against resistance. That is something other than historical correctness — a movement can work and still not have meant that.
- It reconstructs no transmission. If an interpretation holds, that does not establish that an Okinawan teacher meant it so.
- It has no measurement basis and is itself untested.
What it has is a procedure that makes failures visible. In a field where almost every claim is formulated so as to be irrefutable, that is the contribution.
A fuller version with the complete logbook format is in preparation as a companion.
Related Articles
- Kata and Kumite
- Okinawan Karate
- Punching Structure Programme
- Breakfall Programme
- Karate
- Shōtōkan
- HEMA — the same task on European sources — transmitted form, untransmitted application
- Throwing Principles Programme — takes the log procedure against the polite partner from here
- Hand Position Programme — its inventory produces the unclear movements this programme has the procedure for
- Kenwa Mabuni — the rule about an archive holding unreadable entries states his attitude