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Old 01-23-2013, 09:54 PM   #89
ChrisHein
 
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Dojo: Aikido of Fresno
Location: Fresno , CA
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Re: "Internal" and "External"

Quote:
Phi Truong wrote: View Post
what about distributed power system point of view? as in distribute the work out to your body so that no one part bears the burden of the load? if you trained to always distribute the load to your entire body (and into the ground), in any situation, you would only have one method to handle the load, instead of trying to figure out should i use my fingers? should i use my hand? should i use my arms?
I think distribution of force and work load is a great idea. When I generate a strike, I start at the ground, and create a chain link of firing muscles all the way out to the limb that the force is coming out. When I receive force, I align my body, so the force goes into the ground. When we are talking about making large amounts of force (hitting hard, explosive lifting or stabilizing incoming large force) distributing that work over several muscle groups is a good idea. however, each muscle group that fires requires energy (taxes) the body. So if I'm doing something that one muscle group can easily handle (lifting our spoon) it's not a good idea to use every muscle group to do that, because you'll use more energy. When lifting small things it's less taxing to use isolate muscle groups.

Quote:
so back to the example of picking up the spoon. the spoon exerted a downward force (gravity) onto me. i have to deal with such force by direct it to the ground (bring the ground to the spoon) by using mental intent to create a path from the spoon to the ground through my body, say from my right fingers, the ones i used to pick up the spoon, to my left foot. you will soon realize that there are areas in your body where muscles alone isn't enough for stability. what if someone replaced the spoon with a 10kg weight? would you need to change your posture to accomodate? internal folks would say no, because the same path would still be used and the same mental intent still applied.
There are some complex things going on here. First, there are natural alignments. For example, when you stand with good posture, you have a very natural alignment to resisting force coming down on you. You can use very little muscular force in order to resist large amounts of downward force. However if you have your arm out to your side, holding something, it is very difficult to make a natural alignment. This requires huge amounts of shoulder strength, because the position isolates the shoulder joint. In other words from this position it's very difficult to make "ground path". There are ways you can move, in order to better use natural alignment and use "ground path" to help support the weight, but from that position (arm reached out to your side), you cannot easily make ground path, you have to use lots of force in the shoulder muscles.

Do you agree or disagree with this?

Quote:

i wouldn't use the word taxing, but more as outsourcing the workload. please tell me your understanding if the "ground path" concept?
The reason I used the word "taxing" is because in order to use more muscle, you'll have to use more energy. If you change alignment you can use less energy, I agree, but that doesn't mean you can be stable from every position at all times, you must align into the direction you want to receive force.

Do you agree or disagree that you must use specific alignments to receive force? Or do you believe that you can receive force in any direction from any alignment if you know "IP"?

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your body isn't just muscle and bone. it's an ugly bag of mostly water.
when i looked at a human body, i see a composite bow of various materials, binded in sinews and skins. have you thought about kokyu rokyu or breath power? why breath power? why not muscle power? or bone power? why breath? besides some of us could use a mint now and then.
I do believe internal pressures are useful (I think that's what you are getting at). Weight lifters use internal pressure to stabilize the body quite a bit. However it is muscles inside of the core that are used to make the pressure. Without muscles you couldn't make internal pressure, this naturally requires energy from the body. These pressures, I believe are most usefully limited to the core of the body as well.

Do you agree or disagree?

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