Posted by Jackelope
With the arm twist while on the ground it seems like that's a move you could use on a person without training but not on an accomplished mixed martial artist. There was absolutely no body control in that position which was wide open for knee-on-belly. Instead of controlling the entire body Seagal opts to teach the move to control the upper body and the arm. A good wrestler, judoka or BJJ artist would get a scramble out of that position easily and IMO a knee-on-belly progression to full mount is a much better option.
AS someone that knows the "arm twist" quite well, I can say that if it is done properly, there is no need to control the rest of the body. The key to the technique is to lock up the shoulder and from there there is nothing you can do short of dislocating your own shoulder to scramble. When you lock up someone's shoulder you can control their whole upper body and push them around wherever you want.
Like I said, the key is to lock up the shoulder. If anyone escapes that technique it is because a) the person doing it is not doing it correctly b) the opponent is multi jointed in the shoulder c) the opponent is able to scramble before the shoulder is locked.
I can speak from experience that locking the shoulder only takes a split second by someone that knows what they are doing. I doubt Silva will be able to pull it off, even on a non-martial artist, unless he practices for a long time.
What intrigued me about the video is the incorporation of aikido timing and distancing. If there is any fighter that could incorporate such movement in MMA it is Anderson Silva.
I personally do not expect to see any Aikido in the fight (though it would be great to see), but I like the fact that Silva is open minded enough to the principles of aikido are applicable in MMA and are valuable to learn.
A note about the small joint manipulation. It exists, but in the style that I trained it was only about 10% or less of the joint manipulation that we did.
I also recalled on the video that Seagal kept asking whether the techniques were legal or not and I think they all were, but I could have mis-heard.