Martial Arts Stack Exchange
Martial Arts Stack Exchange

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What do instructors look for before allowing students to compete in judo?

Entrance into judo competition as a new judoka is contingent on the go-ahead of a recognized judo instructor. What criteria would an experienced judoka instructor use to make that determination? I expect many instructors require at least some ukemi…
Dave Liepmann
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Is there a mathematical model of how much force is applied to joints during various tae kwon do activities?

Related (on a different site): How does one typically determine the energy and force in a foot stomp? I recently got a knee injury and was trying to understand when it was safe to continue to practice. Disconcertingly enough, my doctors and physical…
EJoshuaS - Stand with Ukraine
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Danzan Ryu Jiu-Jitsu for self defense?

Is this an effective art for self-defense? I've been doing it for fun and recreation. I'm thinking for actual self-defense, I should learn catch wrestling and Brazilian jujitsu.
ev1lchris
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Why do Sambo fighters practice BJJ as well?

From what I see some Sambo fighters practice BJJ too, Khabib Nurmagomedov for example. Why would they do that?
Otavio Leandro
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Study on Songahm TKD sparring matches - Wide count ranges?

I regularly scan through google scholar for papers and training studies related to TKD, and I came across this study on physiological responses and other correlations in STF (Songahm TKD Federation, which used to be the designation for the South…
JohnP
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"Lighter" but effective martial art

I'm recovering from a very tenacious back injury and the martial arts I usually do (MMA and BJJ) hurt too much. I've had this injury for 2 years and whenever I think I'm healed enough to restart martial arts training, I damage it again. It is…
Alexbib
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Is there such a thing as a toxic sensei? How to deal with one like that?

TL;DR: I think I'm viciously / discreetly getting bullied at judo by my sensei and higher ranked (sensei is Japanese so I'm pretty shocked about it). Also, I was hit, he discreetly asked other students to throw me hard on the mat (so that I "wake…
Kurt Miller
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Where to get lightweight belts for bjj competitions from?

Is there any company that specialized on this? My main belt is rather heavy, would be great to get a lighter one to wear during competitions, so that I'll have to cut a little less weight :D Any website that compares belt manufacturers? I think it's…
SwissCoder
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How accurate is the Pencak Silat in The Raid: Redemption?

The Gareth Evans-directed movie The Raid, alternatively titled The Raid: Redemption in the US, is about a young Indonesian cop who fights his way out of a criminal complex, relying strongly on his practice of Pencak Silat. How accurate is the…
Hashim Aziz
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How to reduce damage/protect the chest

Recently I started fighting with a group of people every weekend, it's been a few months. I learned a lot and my pain tolerance and flexibility but more importantly speed increased immensely. But what I don't get is how to defend when someone…
user29173
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Is there any maximum time for staying in a belt in BJJ?

Last week, I started to go to a new BJJ academy after a while without any training. When we started rolling, I asked to the guy that was rolling against me for how much time he was training. Since he is a white-belt with no stripes, I was expecting…
El M
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How to counter a powerful Left Roundhouse Kick from a Southpaw in MT?

This is an extremely educational, humbling and interesting MT fight/technique breakdown video. It shows the ferocity of Samkor Kiatmontep's Left Roundhouse Kick from the southpaw stance against Satoshi (a formidable fighter known for his punch…
RoundHouse
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What is traditionally written on a judo belt?

I recently passed a Dan exam and would like to get rid of my old, cheap belt. I would like to buy a higher grade belt and have some inscriptions on it. I plan to take a Kusakura obi with the Kodokan emblem. I wanted to write 柔道 (Judo) on the side…
pscheiben
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Long Focus Mitts for Punching and Kicking

I kind of hate holding the Muay Thai style kicking pads that most people seem to use for training punching and kicking combos. I much prefer the boxing style focus mitts with an open hand like these but I recognize that the longer MT style pads are…
grovberg
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Can one be a formidable MT fighter, if they are unable to jump-rope, swim, cycle, or run long distances?

I am 28 years old. It is embarrassing and very demoralizing that I can't jump-rope. I see all the boxers in my gym do that. I also cannot swim, ride a bicycle, or run more than a mile continuously (I start getting cramps below my right rib area).…
RoundHouse
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