View source for Observations from the Author on three-step sparring

From my travel around the world, I have observed so many
students who incorrectly measure the distance between partners for
three step sparring. The following illustrates two most common
incorrect methods of measurement and explains why they are of no
scientific basis. Remember this unscientific way of measurement
not only hinders the proper delvelopment of basic techniques and 
good posture, but creates bad habits which are difficult to correct as
the student progresses.

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One full arm length method


Correct punch with a walking stance


This illustrates how far the punch reaches through the opponent,
passing the actual point of focus.


The defender is forced to bend the elbow severely to intercept the
opponents forearm.

Or the defender must lean the body backward in order to perform a proper block.

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Two full arms length method.

Correct punch with a walking stance.

The fist cannot reach the target.

The defender cannot intercept the opponents forearm even with a straight arm.

The defender is forced to lean the body forward in order to perform a correct block.