Why cannot techniques be effective without a large spacial load-up?
Who said large?
One of the tenets of Uechi is close-range fighting and the techniques that enhance it. Close-range, no-windup techniques fill that bill perfectly.
This is all we do in WCK spending 80%-90% of training time actually sticking, changing and hitting in bad breath distance.. The 1 inch punch is from WCK.
One of the concepts of Fajin is instant explosion with no windup, therefore no spacial requirement.
There is a world of difference between “no windup” and “no spatial requirement.”
In WCK the longest weapon is the sidekick and the shortest in the shoulder. Fists, palms, hit from where they are. But normally start on the line to clear and maintain alignment and balance on the clash.
In Uechi I see this in the Reiken punch (sp?) it's delivered straight up the middle covering perhaps a six-inch travel. The arm movement is minimal because the body delivers the blow. There is no arm extension per se.
We also use this, called the splitting punch.. You guys should chain them together! But we do fully extend – that’s part of fajing no opposing muscles no impediment of power..
The nail is straight when the hammer hits it… The whip is loose when it cracks.
So, exploding is good, with any part of the body, but not at zero distance
All striking in WCK use fajing. Fajing means hitting with the whole body, both in terms of mass and in terms of all joints used in harmony. The contact point or 'weapon' could be a hand, fist, elbow, shoulder, etc..
The ideal is to use all of your body weight to generate force from the floor through alignment of the bones, sometimes called stacking, driven by all the joints in order to make and focus energy..on impact.
This is very close to the same concept as the no-inch punch, I mean, how much linear velocity are you going to attain in six inches of travel?!
Six vs. zero? Like night and day.
I take this to mean at in conventional thinking, space is required to generate impact force.
Let's look at what impact force is:
Impact force is a type of force in physics that describes the effect that time has on accelerating bodies (up to sign). For example, since
f = ma
for a mass m accelerating at a, then assuming an ideal system, we can set the impact force as,
for a time interval dt.
For example, a train that weighs 1 kg moving at 500 m/s and that hits a 'perfect' steel wall where it uniformly decelerates from 500 m/s to 0 m/s in .02 seconds, has an approximate impact force of 25000 N. Thus, a body which decelerates more quickly has a greater effective impact than one which decelerates more slowly.
So we can see that first off velocity plays a major role in impact and we can see that you can measure energy transfer or force by how quickly the velocity drops to zero. But in order to have any actual velocity before contact you will need a least a little space.. If one is already in contact before any velocity is made there can be no deceleration on impact since by definition 'impact' already occurred before velocity, this is called a push...
In the example above: When the train has a high rate of speed it has stored kinetic energy. The faster the train goes the more energy it will store. Regardless of speed it always hits with all of its mass since it is aligned with the target. In the first example the train could blast through the wall in a great release of sudden energy transfer because of the sudden drop in the speed of the train when it hits the wall, indicating transfer of energy.
However if the train is already in contact with the wall with a speed of zero and then she guns her engines full power what's the most damage one could expect? A dent? A bent wall? Definitely no explosion near the magnitude of the speeding train in the first example. Same train; Same engine, but far less destructive force because no energy was stored kinetically prior to impact because the train’s engine needed more time and space to transfer great power to the train. Time and space acts as a ‘battery’for mechanical energy to be created and stored in an object in the form of velocity.
When you place your weapon on the target first and then generate the energy you essentially gave up the opportunity to store energy for transfer into your target. Now if the distance if zero is forced upon us we may still fajing and indeed it may hurt, like the dent in the steel wall. We can use this dent to steal balance and gain time and enough space to use our fajing to make more power or a stream of power that can then finish the job..
So yes you can hurt someone and yes you can generate power even if already in contact but there is no impact to speak of since contact already existed prior to power generation. Now if you have really, really good relaxed power generation and if you can really make a lot of fajing, I mean a lot then your acceleration will be so fast that you could do internal damage to the opponent, like a bullet already in contact with the target. If you fire the bullet already in contact there is still no impact, the bullet will travel through soft material but if pressed against too strong an object the bullet will backfire..
So except for the MA fajing expert zero distance hits are going to be destructively marginal and used because of less than ideal positional conditions to shock and steal balance which can buy you the time needed to reload and release impacts if that is the goal.
Generating highly destructive short power strikes through body unity, looseness and fajing is hard enough without holding out the idea that a fajing push is going to be a fight ender or even close; some weapons like elbows and palms in the right positions can cause whiplash from zero distance because you can rapidly accelerate the head or neck using your fajing, however this is not an impact…! And at this range you’d be better off either going into a neck lock or choke, etc at this hugging range or making the two inches of space needed to make true impacts.
We use short power so we can stick and change on the inside and still make good impacts from a very close range, say down to three inches. Once you get closer than that we train to simply make the three inches of space though fajing or to use closing and apply locks or chokes, etc..
In the end if your weapon is three inches away from the target and you simply place it on the target and fajing then you wasted the space which could have been used to store much more power on the way to the target. a waste of space.
I hope this was clear..