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16 votes

Is hitting hard objects really effective in making bones harder?

Yes, but... (and it's a big "but") Two things stimulate bone density: Damage Generally our biological systems are set up so that if something is damaged, cells lay down more, tougher material ...
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15 votes

Targeting arteries / tendons in knife fights?

Just to add to the discussion, I trained in escrima back in college from a student of Danny Inosanto's and someone who went to Dog Brothers gatherings. We did a very simple exercise to show how knife ...
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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
Accepted

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 ...
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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 ...
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10 votes

Targeting arteries / tendons in knife fights?

If you are in a 'knife fight' the first thing to realise is that this is an extremely high stakes fight. One or both of you are probably going to die. Unlike unarmed combat it doesn't really matter ...
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9 votes
Accepted

Are Omoplatas legal in judo?

Yes, omoplatas are considered a variant of ashi-gatame or hiza-gatame.1 3 The IJF Referee Commission has confirmed their legality on multiple occasions,1 2 both as a submission, and as a turnover: ...
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9 votes

Is hitting hard objects really effective in making bones harder?

Yes, hitting objects does make your bones more solid. Bones are primarily made up of two parts, and outer layer and an inner layer. The outer is a thin layer of compact bone (cortical bone). The ...
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9 votes

Why Do Pressure Points Work Differently Against Different People?

Welcome to the scary world of real human anatomy. What you read in an anatomy book is the average location of things - but actual people can have significant variation in specific location. For ...
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  • 8,533
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 ...
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8 votes

Would women with large breasts be able to fight?

I'm not entirely sure this question is serious, but what the heck. :) I've known female classmates in styles like Taekwondo and Kung-fu. They generally said that getting punched in the breast was ...
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7 votes

Why is ude-garami legal if it is effectively a shoulder lock?

Original intent of rule The phrasing "kansetsu-waza applied to the elbow joint"b is used by the Kodokan to describe joint-locks which achieve their effect by: straightening or bending the ...
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5 votes

Is hitting hard objects really effective in making bones harder?

I'll focus my answer on why you want to do that, and if it's an effective/safe way to achieve the goals that you are truly seeking (because even if you can increase your bone density, this does not ...
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  • 199
5 votes
Accepted

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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5 votes
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Is it common and expected that shifus give theory classes about stuff like TCM, meridians and joints?

Joints This one is easy. Yes, your martial arts instruction should cover joints extensively. This includes things like the use of joints, the training of joints, striking with joints, striking at ...
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5 votes
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Simple workout for kicking/leg muscles

Kicking is more than just strength. There's speed also. Combining both gives you power. But since you asked just about the strength aspect, that's what I'll respond to. With barbells or dumbbells: ...
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5 votes

Would women with large breasts be able to fight?

would they actually be able to fight? What is going to stop them? Among other things, fighters can be male, female, young, old, short, fat, skinny, tall, missing limbs, or blind. You cannot tell who ...
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4 votes

Is there a way to reliably attack only a bent elbow joint with ude garami (Kimura, Americana)?

Attacking the muscles and tendons connecting the elbow As Philip says, Americana style ude-garami from mune-gatame can be used to cause pain to the elbow joint and/or connecting muscles/tendons by: ...
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  • 7,272
4 votes

Is there a way to reliably attack only a bent elbow joint with ude garami (Kimura, Americana)?

While "reliably" may be disputable, the main means to make the bent-arm variant (from mune-gatame, i.e. not the classic kimura with uke's wrist behind her back, although the principles mostly apply) ...
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4 votes

Is there a way to reliably attack only a bent elbow joint with ude garami (Kimura, Americana)?

Yes, there is. Ude garami is a commonly misunderstood technique. Mainly because most people in western countries get taught that it has to be performed with uke's arm being bent. There is even a ...
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  • 273
4 votes

Simple workout for kicking/leg muscles

I've found that the same exercises that basketball players use to improve their jump shots are very effective. Explosive power You tend to want explosive power. Most of what we do is kick fast (not ...
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  • 3,851
4 votes
Accepted

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, ...
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4 votes

Targeting arteries / tendons in knife fights?

With the caveat that I never did any substantial knife training, and most of it in traditional martial arts like Escrima, you are unlikely to have the opportunity to really target anything because it ...
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3 votes

Is it common and expected that shifus give theory classes about stuff like TCM, meridians and joints?

It is common for Shifus to have knowledge of TCM theory. It is also common for them to explain TCM theory to students. However, it is equally common for Shifus to withhold such information. Such ...
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3 votes
Accepted

Low kick and block with shank-bone

Round Kick You're delivering the kick with the lower part your fibula. You would also block a low round kick by turning your fibula to meet the fibula of the opponent. The tibia, while potentially ...
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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

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

Is hitting hard objects really effective in making bones harder?

Well it seems I might be the only one who thinks this is mostly a myth. I'm open to the possibility that bone density can be changed by beating against the bone or breaking the bone, but I'll require ...
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3 votes
Accepted

What is a "shoulder lock" in Judo terminology?

In Judo texts which use "elbow lock" to refer to bent-arm locks, the term "shoulder lock" appears in two contexts: kata-gatame ("shoulder hold", osaekomi-waza)1 2 3 kata-...
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2 votes

Why is ude-garami legal if it is effectively a shoulder lock?

I think you have mostly answered your own question. Ude-garami can affect both the shoulder and the elbow joint. As an official, it is not possible to tell whether the shoulder is being affected. ...
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