As other have pointed out, the chin jab is not just an uppercut, but is used in conjunction with the strike to the back(kidney area) which also helps concentrate the force on the neck area. You are striking the farthest point(the chin) from the axis(the spinal column) giving you the most leverage for a snapping action. By striking and holding the guy in places, he cant move back with the force.
Is it hard to setup? Not if you practice, it is essentially a sidestep with a strike to the rear, followed quickly by the chinjab and knee to the nuts.
Be all and end all? Who knows. Any reason it shouldn't work, especially if you continue through convert the chinjab to tigerclaw(fingers in eyes) push down, slam head into concrete and follow up with a stomping kick.
I don't want to come across as an RBSD nuthugger, but the spinning backfist, high roundhouse and haymaker are all things that can't be done inside the space of a phone booth; the chin jab is.Quote:
I agree that if you do manage to land a clean, full powered chin jab, then you should be able to knock him out or at knock him down. But you could make the same argument for the spinning backfist or a roundhouse kick to the head or even a haymaker, and these aren't necessarily great self defense moves.
"Close and to the side" isn't that big of a special position- it can be achieved in a single forward step, which is a good idea for an initially forward strike anyway.Quote:
So to clarify, what I'm asking here is exactly how practical is this move given the special position that it requires to be used properly?
Bas Rutten has stated as much in interviews, that he prefers to punch because that is where most of his training has been, but he indeed found open hand strikes to be very effective, and anyone who's seen his self-defense material has seen that he personally uses a combination of both fists and open-hand strikes.Quote:
Now in theory, palm strikes to the head are a good idea since palms can deliver more power due to lack of wrist movement and can transfer more force without breaking. However outside of Pancrase I practically never see it being used as a substitute for the punch. I don't know if this is just because people are used to punching with the fist, or if they decided that the fist is more effective than the palm, or if the use of gloves makes the fist superior to the palm.
The range really isn't that much different, meh a couple inches, it's much more of an issue that one learn the effective strikes & combinations that work with open hand strikes rather than opening your hand and then assuming that you can just box with your palms. Open hands work differently.Quote:
Ah yes, Bas Rutten used a lot of palm strikes in Pancrase and some of these were knockouts. So it is definitely possible to knock people out with palm strikes instead of fist strikes. But is it worth giving up the extra range of a fist? Does it have equal or better knockout power?
Just in case anyone is confused, here's about the best description of the classic WW2 Chin Jab you'll find.
& keep in mind that this is not a Tiger Claw strike, they differentiate between the two:
edit: here's another take
Strangely enough, I learned how to properly do a chinjab at a seminar by Carl Cestari.