The GTF-Talk Archive.

From: Charles Horn <cch27@columbia.edu>

Date: Wed, 22 Oct 1997 10:36:55 -0400

Subject: The sine-wave

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Date: Wed, 22 Oct 1997 10:36:55 -0400
To: gtf-talk@more.net
From: Charles Horn 
Subject: The sine-wave
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Dear Taekwon-Doists:

In my attempts to apply the sine-wave movement to my techniques I have not
been able to fully understand it's use in many techniques.  To begin with
perhaps my understanding of what the sine-wave is used for is faulty.  My
current belief is that it is used to increase one's mass (thus increasing
power) at the critical point of contact using a strike or block.  I can see
why this would be effective for hand movements at shoulder level and below.
 However, when hand techniques are above this level, such as when doing a
high section punch or a rising block, I do not comprehend how dropping the
body can increase the power of these techniques because the body mass is
being moved away from the strike/block instead of being put behind it.  One
possible answer to this is that execution of these techniques should occur
during the rise of the sine-wave after the drop--but this is just my own
speculation.  
I have the same question concerning kicks.  And I also have a related
point. When doing some technique like the inner forearm block from an
L-stance power is applied to the side.  But if you are dropping down at the
same time wouldn't this reduce the power of the technique--in the sense
that the dropping motion is diverting mass away from the technique that is
being executed to the side.  I guess this is also true of techiques that
are executed to the front, i.e., walking stance obverse punch.  If any of
you could enlighten me on these questions I would greatly appreciate it.
You can either reply to the entire list (since this discussion may be
beneficial to everyone) or to me personally.

Sincerely,
Charles Horn
cch27@columbia.edu

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