rojcewiczj wrote:While there are many forces in the body at any given time during an explosive movement. Most everyone will tend towards combining them all into one force for a single effect. For instance, pushing off your back foot and turning the waist and throwing the fist together in order to create a single powerful punch. There are many many possible degrees of separation between one force and another. To thread the body force (gravity, structure, ground-path, combined for the sake of clarity) through to the limb force or technique in such away that the first force is fully realized and the second acts as an ideal extension of the first is very difficult. To me this is why the sort of power clarity we see in high-level practitioners is relatively rare. My point to be clear, is that using two forces that create two different effects (first seizing and second throwing-down or penetrating) in such tight sequencing as to become one action, is what I consider attainment in martial art technique.
I may have misunderstood. Your OP mentions "falling/stepping and catching/fist," not "seizing," which is why others mentioned Dempsey's "falling step" punch. The more forces you separate/leave out (only falling), the less powerful a single
punch may be.
rojcewiczj wrote:to respond to John Wang, aside from the technical details you describe. If we look at the take down through the lens of my described model, we can see that the body is used first to unbalance the opponent before the specific throwing technique is applied. The threading of these forces is such that they become one action, but in fact, the turning and throwing would not have been possible before the shoulder lift was applied.
If you mean the above throw
https://i.postimg.cc/PJvJYhDs/single-leg-flip.gif, it appears to be two movements, lift and throw—which is not "very difficult" and
common to judo's single leg/ura nage (out of competition), wrestling, etc.
rojcewiczj wrote:when we look at quality taiji demos we can see the initial seizing caused by body force which allows all manner of techniques to applied seemingly effortlessly.
I have seen taiji
demos where one point touch (na/seizing) unbalances the opponent (Liang De Hua). However, I have not seen that done in competition. You may want to post a sparring/fighting or demo clip for more clarity and discussion.
Sport fighters
do seize opponents with or without touching before striking while avoiding counters.
rojcewiczj wrote:I enjoy doing Judo style grappling on occasion for experience. When you grab the opponents jacket and apply a body force through stepping/shifting and you feel the balance of the opponent become siezed, then you can attack with second extending force or technique. If your step/shift has no effect then the second force will almost certainly fail.
In johnwang's shuai chiao clip, an opponent can defend against the single leg having "no effect." So, I see no difference between that combination and judo's or wrestling's.
johnwang wrote:marvin8 wrote:One should follow six harmonies (e.g., head not pass foot), not over committing to avoid being countered.
You need to move your head to pass your foot to do many throws. Without "over committing", there won't be any sacrifice throw.
https://i.postimg.cc/PJvJYhDs/single-leg-flip.gif
I was referring to striking. Although, some MAs take a more conservative approach preferring to use trips over throws.