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15 votes
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How effective are nunchaku as a choking weapon?

Your confusion may be that you're thinking of the nunchaku chain wrapping around the neck, as a choke to cut off air, but the proper technique uses the sticks to apply pressure to the carotid arteries ...
12 votes
Accepted

Why don't we strangle with the hands in BJJ

Choking with hands wrapped around the throat is not efficient The goal of chokes in BJJ and judo is to cut off blood to the head at the carotid arteries and jugular veins, which can render a person ...
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12 votes

How do blood chokes actually work?

According to forensic science it is pressure applied to the carotids and not the veins that causes loss of consciousness, although pressure on the veins leaves specific signs of strangulation when ...
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11 votes
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What happens to a person being choked?

Philip Klöcking has done a good job covering what the person being choked experiences. I will try to cover other considerations. In my experience, feeling pain is largely separated from whether a ...
  • 13.8k
11 votes

What happens to a person being choked?

Subjective experience report incoming: It very much depends on the quality of the application and the strength ratios. The better the technique is applied and the stronger my opponent in relation to ...
8 votes

How are chokes/strangles classified in Judo?

Below is a list of chokes and how they fall into the 12 current Kodokan shime-waza classifications. Note that like with certain throws, there is often debate as to whether certain choke applications ...
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8 votes

How do blood chokes actually work?

What I've picked up over the years about how blood chokes actually work - and I could be wrong - is this: There's a nerve in the neck called the Vagus nerve. One of its many functions is to sense ...
7 votes
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Are arm-triangle chokes legal in Judo?

Yes, arm triangles are legal provided you trap one of uke's arms with their head. According to the IJF Refereeing Seminar 2018: An action like kata-sankaku (sankaku done with the arms) is allowed ...
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7 votes
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What is the difference between choking somebody to death and choking them to unconsciousness (technique-wise)?

The two basic mechanisms when choking are blood and air. A skillful blood choke will knock someone out within seconds, say 2-20. A pillow choke blocks air, which takes much longer ~2? minutes. Death ...
  • 13.8k
6 votes
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Escapes from standing rear mount

The orthodox BJJ response to someone on your back with hooks is to first strip the hooks then shuck them off, while protecting the neck. One can do this by standing upright and pushing the hooks down, ...
5 votes

How effective are nunchaku as a choking weapon?

For the practical part, first see Sean Duggan's answer. Then consider the fact that even though it is not technically "choking", the nunchaku will work the other way around as choking instrument ...
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5 votes
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How do blood chokes actually work?

The following study (on hadaka-jime and nami-juji-jime) supports the claim that compression of the carotid (and vertebral) arteries is associated with loss of consciousness in judo-style chokes: By ...
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4 votes

Can spinal injury occur from rear naked choke

If you are uncomfortable with something that is happening to you, then tap. If your partner taps, then stop and let go with no questions asked. All questions wait until after disengagement. This is ...
  • 13.8k
4 votes
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What is the difference between a choke and a strangle?

The three main mechanisms of choking technique are: Choke Mechanism Synonyms "blood" choke compresses the sides of the neck, restricting blood flow to head sleeper hold, carotid restraint, ...
  • 7,702
4 votes
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Body constriction techniques

Yes, there are other constriction techniques. These are a few examples, not meant to be exhaustive. As a philosophical matter, I think you should always be looking to further break uke's structure and ...
  • 13.8k
4 votes

How are arm-triangle chokes classified in Judo?

As of Germany, all of these would be considered a form of hadaka jime since every choke that is not with the legs and not executed using the gi is classified as such. That being said, we do have ...
3 votes

What happens to a person being choked?

I took the question "What happens to a person being choked" a bit more physiologically. From what I understand (from a 'straight dope' posting almost 20 years ago), a properly applied "blood choke" (...
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3 votes
Accepted

Is the North-South choke legal in Judo?

I am only a low-level referee, but here is my best interpretation of the rules for this choke. I would call this version legal. Although uke's left arm is separated from uke's head, tori has control ...
  • 13.8k
3 votes
Accepted

Is the "baseball choke" legal in Judo?

Legal My personal understanding (sorry, no official guidance) is this use of the skirt portion of the jacket is legal. This is basically the same use of the opponent's gi as in kata juji jime. The ...
  • 13.8k
3 votes

Are arm-triangle chokes legal in Judo?

Just to add to mattm's answer - the IJF has now codified its position in the current ruleset: So in short, the following submissions are/aren't legal: Technique Legal Anaconda ✅ Kata-gatame ✅ D'...
  • 7,702
3 votes
Accepted

Resisting choke holds using throat tendons?

When a choke is properly applied, no amount of "neck flexing" will save you. Let's use a rear naked choke for example. The attacker is behind the victim. The choking arm forms a 'V' shape at the ...
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3 votes
Accepted

Is the "Peruvian Necktie" legal in Judo?

The kata-sankaku prohibition is about danger to the neck joints in my understanding. In the guillotine position (your footnote #2 with the yellow background), you threaten the neck joints, while you ...
  • 13.8k
3 votes

How do I set up correctly a collar choke?

Here is my general advice for cross chokes in the absence of any other answers. I don't personally play closed guard, but I think most of this advice should still be applicable. The goals for a blood ...
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2 votes

Resisting choke holds using throat tendons?

According to the following paper, tensing the neck muscles can indeed reduce pressure on the carotid arteries during a judo style choke: Tensing the neck muscles can reduce the effect of choking. [......
  • 7,702
2 votes

"plucking" as defense for a choke from behind

Plucking the hands off the neck is not a realistic response because no one who is realistically trying to hurt someone with a choke places their hands on the neck from the rear. The only exceptions ...
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2 votes
Accepted

"plucking" as defense for a choke from behind

You can simply see it as a tool, and depending on the circumstances where it happens. Usually, and what I personally find naturally, is the turning motion while raising one arm (biceps to your ear and ...
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2 votes

Can you be immune to chokeholds?

Depending on your definition of "immunity", some people do indeed appear to be more resistant to chokeholds than others. In the study Mechanism of loss of consciousness during vascular neck restraint,...
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2 votes

How are the clock choke and bow-and-arrow choke classified in Judo?

What the second hand in okuri-eri-jime does is securing the shoulder, even if it does so holding the lapel. That is why jigoku-jime is considered okuri-eri: one limb is securing the shoulder, one hand ...
2 votes

How are arm-triangle chokes classified in Judo?

I still haven't found any info on the Kodokan's position, but the IJF seems to classify such techniques as hadaka-jime when they occur in competition e.g: Technique IJF Hadaka-jime examples D'arce ...
  • 7,702
2 votes
Accepted

Is the "Gerbi choke" legal using your opponent's jacket?

I assume that you refer to the technique where you pull uke's lapel under his armpit, diagonally across their upper back and around their neck. The rule says clearly that we are not supposed to apply ...

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