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Body constriction techniques
Judo shime-waza comprises three types of technique:
blood-chokes
air-chokes
body constrictions
The most famous of the third type is the (competition-banned) do-jime, but it is also possible to submit an opponent via a similar mechanism in a…
brazofuerte
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3 answers
Disabled BJJ - worth a try?
I'm 43 and got myself a spinal cord injury 16 years ago that keeps me in a wheelchair most of the time. I can stand and walk with crutches and have some decent (for a quadriplegic) upper body mobility but definitely impaired strength, balance and…
Daveh0
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4
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2 answers
Were wristlocks ever part of Judo randori?
The Kodokan goshin-jutsu kata as well as several 20th century judo texts1 demonstrate various wristlocks as a self defence technique, similar to the teaching of atemi. However since at least 1900, they appear to have been barred from use in randori…
brazofuerte
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4
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Why is ude-garami legal if it is effectively a shoulder lock?
Since 1925, judo competitions have nominally banned all joint-locks applied "anywhere other than to the elbow joint". Since its inception in 1951, the IJF has also adopted this rule.
In spite of this, the shoulder-joint rotating armlock ude-garami…
brazofuerte
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4
votes
2 answers
history of Jujitsu?
Does anyone know of any good references covering the history of Jujitsu?
I've been studying Judo, Jujitsu (Japanese), and BJJ, and everyone I ask has a different version of the history of these arts. The internet doesn't help much either, so if…
nedlud
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4
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What type of throw is the Laats' Dive-In?
The "Laats' Dive-in" (named after its use by Johan Laats) is often described as a variant of kata-guruma avoiding grabbing the leg. However, I have seen some debate as to how the throw should actually be classified, with some instead calling it an…
brazofuerte
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4
votes
2 answers
What knocks a person out: Is it energy or force?
Intuitively I know faster punches = more speed is better. But also mass is important for generating force as well as energy. In high school physics we learn E = 1/2 mv^2 so energy is proportional to speed of punch squared. But also Force = mass x…
muaythai201
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4
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1 answer
Etymology of tomoe-nage?
Tomoe-nage is often translated as "stomach throw" or "circle throw", but these are not direct translations. What does tomoe mean, and why is the throw called this?
brazofuerte
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4
votes
3 answers
Stretching advices for kicking
I'm rather flexible, but still cannot do the splits. I'm trying to do a static stretching about three times a week, and about 30-60 minutes every time.
But I noticed, that when I'm trying to stretch with my body parallel to floor - holding body on…
user2501323
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4
votes
1 answer
Resting leg muscles in cold water and temperature
I have watched some Taekwondo practitioners resting their legs inside ice cold water for a specific amount of time:
Also, I noticed Cryotherapy devices being used:
What is the effect of low temperature on muscles? What is the science behind it?
Megidd
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4
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3 answers
How do martial artists make stronger fingers via hot sand?
I have seen films in which a martial artist thrusts his fingers into hot sand.
What is the name of this exercise and what are its benefits?
Дмитрий Петров
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1 answer
How are armlocks categorised in Judo?
I had always thought that the distinction between ude-garami and ude-hishigi-...-gatame was that the former referred to bent arm figure-four elbow/shoulder locks and the latter referred to armbars (applied in various ways).
However the Kodokan Judo…
brazofuerte
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4
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2 answers
Are there any Judo techniques which are illegal in BJJ?
Judo and BJJ both stem from early 20th century judo, but over time have focused on different aspects of the martial art - broadly tachi-waza and ne-waza respectively. Additionally, they are mostly taught nowadays as a sport, and the difference in…
brazofuerte
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4
votes
2 answers
What is the name of the maker of this bokken?
I'd like to know the name of the maker of this bokken, which I purchased in France some years ago:
To make it easier to read the characters, I have traced them (correctly this time):
Daniele Procida
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4
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1 answer
What kind of glove is being shown in the following pictures, and why is it nearly always a knife user who wear this style of gloves?
I've been searching for information for the past five years on what kind of gloves that the close combat assassin is wearing in the following pics from the digitalized novel Phantom of Inferno.
I've noticed that this particular kind of glove is…
Toyu_Frey
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