Do you train short power? Like hitting your partner with your fist or hand only a few inches away?
Yes, with palms, fist and experimenting with elbows as well. The entire body is used to create a short burst or “whip”, I like the term “Vibration” however. In tight waltzing distance with of course no windup, dropping your center into the partner. The hand is just the means of delivery correct?
This relates to short power, you only have that short space to make the transfer, unlike with say a reverse punch that has a long length of expansion and therefore time to transfer energy.
Well it will not be accelerating AFTER it meets the target, but it could be accelerating up until it meets the target.
Were on the same page I think, it can not be pushed into the target. The deceleration of the fist for example after impact will still send energy into the target like water shooting out of a hose.
If the fist is stopped by tensing the muscles the energy will remain in the arm with little transfer of energy into the persons body.
The idea is that any energy left after the connected mass strike makes the impact is not going to increase the impact force, nor will a "push" at the end of the strike do much in the way of increasing damage since it is very much a last minute push.
So yes full extension and power transfer may not be complete on impact but the energy push trailer isn't what's doing the damage as there is no accelerating connected mass to transfer this energy to after impact.
Last minute push is not useful I agree, but energy left after the connected mass strike I think can be funneled into the strike (like water shooting from the hose)
In the air the strikes <punching air or missing> we train the muscles to shut off before full extension of the arm or elbow joint
If you train not to have a preconceived end point in air strikes or missing the muscles seem to adapt without injury. Also, the ability to hit harder is enhanced.
Doing sanchin arm thrust I allow the arm to extend fully and the entire body is involved in recoil. Some thrust may actually be longer than others in the kata as each cycle is a life in itself. This seems to translate into short range strikes as well, the entire body becomes the handle of the “whip”