by Pandrews1982 on Sat May 31, 2008 5:41 pm
I think that the shaking is just a result of being very relaxed in the arm and stopping suddenly the result is that the energy has nowhere to go to when the arm stops so it causes the vibration. This is often seen when a person "stops" their movement short and they have relaxed arms, the energy of he movement is stopped dead by the feet and issues out of the arm, once its released the relaxed arm rebounds because there's nothing moving it forward anymore, like a bungee rope, as already said by Kenneth Fish, an elastic response.
Think of whiplash injuries in a car crash its a similar thing, the energy the car stops dead on impact (body), the passenger keeps going (arm), the seatbelt stops them going foward (full extension of tendons), the passenger bounces back aganst the seat and is "shaken" by further rebounding.
When striking for real I doubt the shaking would be as evident because the energy would transfer to the opponent. There is definately some force there though, no doubt, but I don't think its particularly "high level" just shows he can be relaxed and has a decent ammount of energy to release.
Also depends on how you want the energy to enter the body of the opponent, to peirce all the way through you would want a more direct strike keeping relaxed but with good structure as it enters into the opponent, power is "on" the whole way, energy goes all the way through. Hebei xing yi uses this kind of energy a lot, it displaces the opponent cutting through their root so they find it difficult to get their footing, it also damages internal organs through the path of the strike so hits to head bad for brain, hits to chest effect lungs and heart, hits to adbomen effect liver, spleen and kidneys etc. Pain from this is quite sharp but often not evident straight away may take a minute or two to register that you're hurting on the inside. For an internal strike you'd look to just peirce the surface and let the energy enter the body, use a peircing/penetrating strike on contact but immediately turn the power "off" menaing the energy issues within the opponent. This is also known as cavity strike, not as direct as the piercing strike as the energy disperses within the body and doesn't move the opponent much but hurts like hell and feels similar to when you get kicked in the balls (a general intense ache type pain rather than sharp pain inside the body) except can be anywhere in the torso and is particularly bad for being hit in head as again its a knock out technique and can burst ear drums, damage sinuses etc. For a bright strike or surface strike (good for breaking bones and knock outs etc.) the power is on during the movement but off again the instant you strike, energy "explodes" at the surface without entering past the bones/muscle at the surface. This is like a crack of a whip and from what I've seen tai chi guys use this kind of striking a lot but it is in Xing Yi too, its also very effective against soft points and vital points (eyes, throat, temple, groin etc.) This is usually a very sharp pain, stinging or intense pain for a short ammount of time, unless of course you have broken something then its persistent.
All these are good, none "better" than the others and there are other ways of releasing energy as "fa jin" too though a lot are variations of the three kinds above. I think this guy is going for the internal strike type of energy.
Without actually meeting the guy and feeling the strike he is showing its a bit pointless in discussing how good it is really. You can get an idea of someone's ability form a video but without meeting them, understanding what they are trying to show, why they are doing it, how they would use it etc etc its hard to judge how good a specific movement or technique is being done.
B - boxing glove gives two impacts, one with the glove one with the fist within the glove. the result is a rebound effect of the brain within the skull, it gets shaken. Get hit once and one bit of the brain hits the skull and shuts off momentarily hit quickly in succession and the resulting bouncing can turn the brain off - knock out. This shaking kind of energy can give simialr results if done in a similar way. There are strategies in Xing Yi which look to replicate this effect too e.g. hit guy with a hook type puch twice in sucession with same hand, first hit twists brain in skull, guy turns head back into second hit and brain is "shaken" side to side in the skull - result knock out with relatively little force required. A good Pi to the front of the head can also bounce the brain back and forth and knock someone out, though a good pi to the front of the head can also break someone's neck so be careful with this.
