Oyata
taught that footwork was of the utmost importance in one's defensive
ability. This was conveyed with the saying “Bottom body controls
the upper body, Upper body controls the bottom body” (ka ho
shin, jo ho shin). To have effective techniques, requires that the
correct angle of application be utilized. This implied that use of
the proper footwork was essential to make that correct “angle” possible.
This
means that the correct stance and direction must be utilized when
attempting to use an application (Striking, Tuite, Kyusho/Atemi,
etc.). The practice of kata aids in that understanding, but only
illustrates a general reference.
The
understanding of the mechanics of the human body is of utmost
importance to be able to accomplish this. Stances provide a starting
point for understanding this ability, but knowledge of the human
body's R.O.M. Will complete that awareness.
Once
these factors are understood, the student will become more effective
with how to utilize and exploit them (using the instructed techniques).
This
understanding is not (only) the understanding of one's own body
position (though that is a critical factor, as will be
demonstrated in the following text/diagrams), but recognizing what the position(s)
of an aggressor allow for, and what their advantages and limitations are as well.
The
human body is designed to exert force forward. Every limb has
evolved to make this the most efficient direction to apply
force/momentum. This efficiency decreases as it deviates from
that (forward) direction. The
least efficient direction, is to the rear (behind the
person) and is greatly diminished when utilized across (towards the
opposite side) of the body. Even when utilized to the same side (ie.
Directly sideways) momentum/force is limited to that which the limb
alone can generate (use of any “body” momentum is greatly diminished as well).
One's
foot direction will (substantially) effect that efficiency as
well. If/when one's foot is rotated beyond 45ยบ
(in either direction), the stability of the assumed stance can become
compromised (and thus becomes “unstable”). Though often noted in
the stance of an aggressor (uke), it is of utmost importance
to the defender (tori) as well.
The
most efficient direction of one's motion (regardless of which
motion), is forward (in
generalized terms). Knowing this, when students are taught the
individual stances that we utilize, they are shown the correct
positioning of the feet. How one's feet are orientated will determine
the direction of their torso's most efficient direction to apply
force/momentum (technique/application).
Even in the most "simplistic" of stances, even slight foot rotation will (either) aid, or render the legs useless in achieving the desired motion.
The foot positions shown above (in the “stances” examples) illustrate the correct positioning of the tori's feet. Though (initially) seeming odd, that positioning effects both (though mainly) the legs, and the torso's directional options (and thus, The most efficient direction for the application of a technique). The user's positioning of the feet will determine how much of the available force can/will be directed into an application in a given direction.
Even in the most "simplistic" of stances, even slight foot rotation will (either) aid, or render the legs useless in achieving the desired motion.
The foot positions shown above (in the “stances” examples) illustrate the correct positioning of the tori's feet. Though (initially) seeming odd, that positioning effects both (though mainly) the legs, and the torso's directional options (and thus, The most efficient direction for the application of a technique). The user's positioning of the feet will determine how much of the available force can/will be directed into an application in a given direction.
I've
become fascinated of late over the debate concerning rotation of the
body, via (either) the “Heel” or the “Ball” of the foot. I've
read several dissertations on the topic (in favor of either), and I
find it a little interesting, but mostly ridiculous.
It
isn't an “either/or” topic. Depending on the situation, either
could (or should) be utilized. Each will accomplish more than (only)
one result from it's use, and are subject to one's assumed stance at
the time. When force efficiency is factored into a motion, it is
important that the intended “outcome” is considered (and
understood) with every motion that is being made. Students of Oyata's
methodology learn early on, that footwork is vitally important to the
utilization of force efficiency.
Though no numbers/percentages are provided, the diagram is only intend to illustrate the differences between the positional situations shown.
Though no numbers/percentages are provided, the diagram is only intend to illustrate the differences between the positional situations shown.
A
student's understanding of “footwork” begins with their practice
during the formation portion of a class. While a student is
performing various hand/arm motions, the student will be positioning the heel, or the ball of their feet (as required by the
individual technique/direction being performed). These positions and
changes are often dependent upon the individual technique/motion
being performed at the time, the stance and direction of application,
the situation, as well as which hand/arm is being utilized.
The footwork illustrated above, is common for use with either a Tuite technique application, or when defending against an aggressor's strike attempt. It illustrates the use of Oyata's "Hourglass" (footwork) back stance.
In
many methodology's, students are shown their systems stances,
provided with a brief explanation of them, and are (often) then
promptly forgotten/ignored (by the student).
Keeping
all of this in mind, the student should strive to have their
chest/shoulders remain in-line with the hips. This prevents the torso
from becoming twisted (and thus degrading the structural integrity of the position).
As
can be seen with the provided illustrations, the positioning of one's
feet can/do effect the alignment of the upper body as well as the
legs. The effect from any rotation of the torso, will mandate a positioning of the feet/legs as well (to maintain the entire body's
structural efficiency).