garrisons2
Orange Belt
something simple like punching, should the contact be made with a horizontal, vertical or 45 deg. fist? Why?:caffeine:
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something simple like punching, should the contact be made with a horizontal, vertical or 45 deg. fist? Why?:caffeine:
Here is an article in which a medical doctor examines the implications of that type of punch and what is strongest anatomically.
http://www.usadojo.com/pdf-files/articles/chris-thomas/punching-power.pdf
quote]
The above artiocle was written by Chris Thomas . Both he and the doctor cited are Dillman progeny who advocate the 3/4 Punch. So, everything there is suspect. Not neccessarily false, but suspect.
Now I will submit questions to the readers of this BBS. Their conclusion is that the forearm structure is weaker for the full twist punch than the 3/4 twist punch. How much weaker is not stated. It could be 1% or 50%. I think this would call for some in depth bio mechnaical study. Now for the question. How many people have seen demos / tests where all manner of wood, concrete, and ice was brokedn with a full twist punch? Now, how many have seen any issues wehatsoever with the strength or stability of the forearm?
If your like me you have seen thousands of such breaks and zero such issues.
Next question. If you are familiar with some of Dillman's stuff and related pressure point theories you will note that on the forearm the points are located mainly (but not excluisively) on the palm side of the forearm. Which exposes these points more, the 3/4 or full twist punch to possible impact from the opponents hands or arms?
Here is an article from 24 Fighting Chickens about the rotation of a punch and it adding torque/power to the technique along with full extension.
http://www.24fightingchickens.com/2...-extension-and-fist-rotation-during-punching/
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Strong situational flexibility is required for punching, but we're taught horizontal fists, and that's what we practice. The twist at the end of our punch can add up to 20lbs of force, and if you're throwing a vertical or 45° punch, you can't fit that twist in.
this article makes the common mistake of using physics without considering physiology. I.e. it studies and finds the punch reaches maximum speed at 75% extension. Well, of course, if you were to try to increase yor speed until full extension you would tear the arm apart. So, the body needs to strat slowing down the punch befpre full impact. The "Snappy" retraction is a by product of the slowing / stopping.
Similarly, the force issue vivs a vis rotation does not take into account various effects on different types of targets,. particularly anatomical ones.
For a truly classic article from 1983 often cited see "The Physics of Karate"
http://www.arnis.org/downloads/physics1.pdf
While it is not exactly on point for this topic it highlights how the physicists themselve realized that their hypothesis were screwed up and they needed to take physiology into account. It does not address anatomical targets but does address deformation of the fist on impact.
I'd like to see an article about that instead of just anecdotal. I have never found anything about twisting the punch that doing so actually adds force/speed/power to the punch. The only thing I have ever heard is that by rotating on impact you can tear the skin of the opponent's face (a la boxing strategy).
Here is an article in which a medical doctor examines the implications of that type of punch and what is strongest anatomically.
http://www.usadojo.com/pdf-files/articles/chris-thomas/punching-power.pdf
quote]
The above artiocle was written by Chris Thomas . Both he and the doctor cited are Dillman progeny who advocate the 3/4 Punch. So, everything there is suspect. Not neccessarily false, but suspect.
Now I will submit questions to the readers of this BBS. Their conclusion is that the forearm structure is weaker for the full twist punch than the 3/4 twist punch. How much weaker is not stated. It could be 1% or 50%. I think this would call for some in depth bio mechnaical study. Now for the question. How many people have seen demos / tests where all manner of wood, concrete, and ice was brokedn with a full twist punch? Now, how many have seen any issues wehatsoever with the strength or stability of the forearm?
If your like me you have seen thousands of such breaks and zero such issues.
Next question. If you are familiar with some of Dillman's stuff and related pressure point theories you will note that on the forearm the points are located mainly (but not excluisively) on the palm side of the forearm. Which exposes these points more, the 3/4 or full twist punch to possible impact from the opponents hands or arms?
No one said that with practice you couldn't be effective with one punch more than another. But, if you are talking about "breaking" than you aren't doing a full twist punch either unless it is only a couple of boards. Watch when it is alot of material, the punch is not rotated like you do in the "twist punch".
The article merely stated that the 3/4 punch lines up ANATOMICALLY the bones and supportive tissues better. Go and get a skeleton and twist the bones around on the forearm and you will see the same results (I did, wanted to see for myself).