all of this depends on what you want to achieve, u could strive forever to learn the technique most relevant to whatever you want it to be, judo is a cleaned up sport version of ju jitsu (old style) enabling people to compete hard without maiming opponents. theres a purity in that.
It's my understanding that yoroi is primarily armour for mounted warriors, it looks very unwieldy for hand to hand combat. Considering that, and the fact that the only people resorting to grappling on the battlefield are probably people who've lost the use of their weapon... the idea of pivoting on the heel to conserve energy is ludicrous to me (even if it worked). You want to kill whoever's in front of you as quickly as possible or you're pretty much dead anyway.
Originally Posted by Liger
But I'm no expert on medieval Japanese warfare.
You are correct. I've known dancers who have developed microfractures in their heels and painfull, irritated knees when trying to pivot like that. And consider that this was during something as harmless as dancing, not Judo. Doing that in judo == teh sux.
Originally Posted by Virus
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The street argument is retarded. BJJ is so much overkill for the street that its ridiculous. Unless you're the idiot that picks a fight with the high school wrestling team, barring knife or gun play, the opponent shouldn't make it past double leg + ground and pound - Osiris
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Also, Judo already has a wicked high number for knee and ankle injuries as it is. (More than half of the older players at my club have them) so doing anything like heel-turning and other not-so-wise motions involving those areas in Judo is just something I'd rather not think about that.
Also, think about training while turning on your heels (injuries aren't just a thing of the 20th century) and add the weight of armor. I mean, those lil' samurai dudes must've had equally painful training injuries and if they train on heels IN ARMOR... well, let's just say I'm surprised any of them were out of ice-baths enough to fight anyone.
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