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15 votes
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Could Non Newtonian fluids make better judo mats?

There are non-Newtonian fluids that get harder when stressed (like cornflour and water), and there are others that get softer when stressed (like tomato ketchup, that acts solid until you apply stress ...
Nullius in Verba's user avatar
9 votes
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Scientific evidence that punches to the head is harmful in boxing? (Even with protective gear)

Yes, there is scientific evidence that boxing is harmful to the head - Amateur/Olympic boxers show cerebrospinal fluid changes indicative of neural injury Neurochemical aftermath of boxing (Note - ...
JohnP's user avatar
  • 4,669
8 votes
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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?

What is shown is a vambrace, or possibly a bracer repurposed to be more armor. A vambrace is a tube of armor, anything from metal to leather, used to protect the forearm. A bracer is intended only to ...
Macaco Branco's user avatar
8 votes

Should I wear a cup for sparring?

Absolutely. There's no reason not to; I've never had it interfere with kicking. I suppose some brands could be disagreeable to your particular anatomy, e.g., I had one once which was too "shallow&...
Amorphous Blob's user avatar
7 votes

Should I wear a groin protector?

I would rate this a matter of personal choice. Getting hit in the groin is intensely painful, no matter what you have between your legs. Men have it a bit worse, due to the external bits having a ...
Macaco Branco's user avatar
7 votes

Could Non Newtonian fluids make better judo mats?

Those of you who aren't familiar with the concept of Non-Newtonian Fluids, the thing to realize is that they are fluid or solid depending on the stress exerted on them. If you fill a swimming pool ...
Steve Weigand's user avatar
6 votes
Accepted

Are mouth guard the same for all sports?

No they are not. The mouth guards are designed to protect against different kinds of impact most common to sports. You have the top only mouth guard which is meant to be something between your teeth ...
mutt's user avatar
  • 1,110
6 votes

Should I wear a cup for sparring?

Always wear a hard athletic cup before walking onto the mat. My system is boxer briefs with pouch as base layer, regular 3” waistband jockstrap as next layer. Then insert banana style hard cup between ...
Jeffery King's user avatar
5 votes
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Are EVA foam mats good for training?

I have a little experience with these mats. Specifically, I've trained at places that use them. Here is what I can gather: Pros They are easily transportable They can be disassembled and reassembled ...
LemmyX's user avatar
  • 1,553
5 votes
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Should I wear a groin protector?

When it comes to Taekwondo, as a female, wearing a groin protector is more annoying than being kicked in the private parts. The groin protector scrapes the sides of your legs and more often than not ...
Sjana's user avatar
  • 442
5 votes

Scientific evidence that punches to the head is harmful in boxing? (Even with protective gear)

I'm curious as to how you didn't manage to find studies. I did a standard Google search and came up with reputable organizations dedicated to the study and treatment of Chronic Traumatic ...
Andrew Jay's user avatar
  • 4,077
5 votes

What are the main uses of aikido in self-defense?

I think a lot of people take Aikido out of context. Aikido is constantly belittled for the "here grab my wrist" thing, which is admittedly ubiquitous, but it is not the style to blame - it's the ...
Andrew Jay's user avatar
  • 4,077
4 votes
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Light or heavy gloves for friendly boxing match?

The weight of the glove is an indication of the amount of padding there to gradually decelerate your fist and transfer the impact energy gradually into whatever you hit. Extra padding takes longer to ...
Tony D's user avatar
  • 4,150
4 votes
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How to wash leather shin guard?

Like with all leather items, you just wash them by hand with dish soap and water. Don't immerse them in water, just use a washcloth. Then wipe them dry and hang them out to dry. If they're still ...
Steve Weigand's user avatar
4 votes

How to protect knees on jump kick techniques

I'm over 40 and train in taekwondo; I've never been advised not to do jumps or jumping kicks! I train with a gentleman who doesn't jump (for patterns or sparring), but he is nearly 80 and has ...
Mike P's user avatar
  • 1,565
4 votes
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When were modern mats introduced into Judo, and did it change the way the art could be taught?

Judo has always used mats. In Judo Memoirs of Jigoro Kano, Kano (the founder of judo), measured practice spaces by the number of tatami mats. The warehouse afforded a practice area of only ten tamami ...
mattm's user avatar
  • 14.4k
4 votes

Can you make a home dojo with tatami by yourself?

Costs for materials vary wildly from one place to another, as well as depending on the size you want, so I'll mostly give you options for construction and you can check on local availability and costs ...
Dungarth's user avatar
  • 2,225
4 votes
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Kick-to-elbow injuries are very common in our school

Yes, it can be super painful when your opponent blocks your kick with his elbow. It can happen deliberately or accidentally. To me, it doesn't matter which, because the problem is solved the same way ...
Steve Weigand's user avatar
4 votes

What is the weight of dipped-foam TKD/Karate sparring gloves? (see photo)

With regards to open palm, dipped foam sparring gloves that karate and taekwondo typically use in class, the weights are usually much lighter than typical boxing gloves. Weights for boxing gloves are ...
Steve Weigand's user avatar
3 votes

Should I wear a groin protector?

You should always wear groin guard when sparring no doubt ! Does not matter if you are male or female. Proper back kick that lands lower than it should WILL burst you bladder. It is required for all ...
Gorzata's user avatar
  • 31
3 votes

How to protect knees on jump kick techniques

I have no experience with elastic bands - so hopefully someone else will pick up on those. I have tried Knee braces - but they often restrict the jump motion and the less restrictive ones are more ...
Collett89's user avatar
  • 2,984
3 votes

Scientific evidence that punches to the head is harmful in boxing? (Even with protective gear)

Getting hit in the head is definitely bad Most people are worried about chronic traumatic encephalopathy (CTE), which can bring terrible things including loss of coordination, memory loss, depression,...
mattm's user avatar
  • 14.4k
3 votes

Light or heavy gloves for friendly boxing match?

Gloves protect your hands, not your head. It is actually safer to use lighter gloves, from the perspective of brain trauma. Research suggests greater brain trauma is suffered from boxers (8-14oz ...
coinbird's user avatar
  • 1,801
3 votes
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Kyokushin Sparring Gear

If you train with an instructor, I'd suggest checking in with him or her - it makes sense for everyone to use the same gear, and there might even be some constraints imposed by any insurance policy or ...
Tony D's user avatar
  • 4,150
3 votes

Did Samurai armour have flexible joints?

Samurai is a rather large class ranging from foot solders to the Shogun. All wore different armours. Your question spans around a thousand years of history. So, generally speaking… A few armours have ...
Sardathrion - against SE abuse's user avatar
3 votes
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Can Muay Thai Boxing Gloves be used on a Heavy Punching Bag?

Sure, why not? (Noting that bag gloves are usually lighter than full gloves.) Muay Thai gloves generally have more padding on the sides and the padding is more consistent around the entire fist. They’...
Dave Newton's user avatar
  • 1,365
3 votes

Should I wear a cup for sparring?

Yes! Absolutely, whole-heartedly, 100% yesyesyes! I am, however, speaking as a man who loves his bits and wants them to remain functional.
RoseCityRonin's user avatar
3 votes
Accepted

Minimum Sparring Gear For Sword and Buckler

When you do not use full force and are mindful of each other the main cause of injury/pain are mistakes. Most vulnerable are your eyes for thrusts and your fingers for hits. So as minimal equipment ...
Peter Kofler's user avatar
2 votes

Gloves for longsword sparring

Red Dragon Gloves are rubbish for steel longsword. Here in germany, switzerland and austria they used to be tournament legal together with lacrosse gloves (in some places they still are) and they had ...
AlexanderF's user avatar
2 votes

How to fit a gumshield it some teeth are missing

This seems pretty straight forward. If you plan to wear your prosthetic while using the mouthguard, mold it with the prosthetic in place. If you plan on using the mouthguard without your prosthetic, ...
Zen_Hydra's user avatar
  • 1,693

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