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Summary: The chin has a pressure point that can be used to gain control of an opponent. Learn how to do Ushiro chin grab from an opponent's strike in this free Aikido training video featuring a 4th degree black belt.
"Cool. So one of the things I like to do is get behind an attacker. That way I can use them in a multiple attack situation. I can use him against the other people. So, however you get into this, is however you get into it. There's a million ways. Let's just look at one. I can cut the arm down here, spin around behind, like this. Now right at the corner, right down from the lip, there's a little hollow area, it's called the mental Foramen. There's a hole in the jaw where nerves actually come out of this, your facial nerves come out, and you'll see the reaction of the Ukai just from that. If you push in and down at this angle, that's the reaction you get. It hurts and it also releases the neck. So that way you have free reign of the neck at this point. You can learn to steer and control your attacker this way. So the way I will do this, is I come here to get around behind him, snake this around, grab it just like this, and I want to secure him so I push him just like this. That way I'm pushing him into my shoulder and he can't get away. You would think, "Well, why doesn't he just reach up and grab that hand?" Because...go ahead and grab my hand...it hurts too bad, okay? You wouldn't think that it would hurt that bad, but all you have to do is take your knuckle like this, and dig it in, and you'll feel exactly what I'm talking about. Do it on both sides, it's even worse. You can do it this way, spin around, take him like that. If I want to drag him around, I just move him around with me, just like this, keeping him in front of me. When I want him down, all I do is push in and down like I'm trying to push it clear out the back of his neck, here, and that's how you drop an attacker. However you get into this is fine with me. Here, like this, spin up and then down. You can come with a...here, like this, got it just like this, in and down. Okay? "
eHow Article: Ushiro Chin Grab