Originally Posted by
Xiao3 Meng4
Well, in terms of British vs. Chinese ounces, I have to say that I'm not familiar with the differences... a quick search online puts the British ounce at 28g, and the Chinese ounce at 50g. I did a search on ancient chinese measurements as well, and came up with gram equivalents of never less than 50g per ounce.
Personally, I've only ever played with British ounces... 4 of which equal 112g.
At any rate, a force of even 4 British ounces applied to the body has a marked effect on the organism as a whole. In other words, the body responds to the force as though it were "something" rather than "nothing," whether the conscious mind is aware of the force or not.
In my experience, however, the standard units of measurement mean little, since everyone has their own "personal" weight measurement system, in the same way that everyone has their own "personal" distance measure. The cun, or body inch, is a personal measure that is defined by the width of one's thumb at the phalangeal joint. This measurement is used in describing the various distances between your own personal anatomical landmarks. For instance, everyone's forearm is of a different length, but when you divide it into body inches based on their own personal scale, everyone's forearm from the crease of the elbow to the crease of the wrist is 12 cun, or twelve body inches.
The same is true for measuring "weight." The way a large, strong man's neurophysiology interacts with a pound is different from how a small, weak woman's interacts with a pound. There is, however, a certain amount of weight that you can give the strong man so that he experiences the same neurophysiological compensation as the weak woman. Likewise, there is a certain weight that you can give the woman so that her neurophysiology behaves in the same way as the strong man's does in relation to the pound.
Back to 4 ounces. As a personal measure, it reflects the "limit of strain" (this is my half-baked term, feel free to find a better one.) The limit of strain is the minimum force needed to for our neurophysiological response to recruit the stabilizing muscles of the body to maintain balance and interact with said force from a rooted position.
For the woman in the above example, this limit of strain is much less than the man. However, both the man and the woman have exactly this same response at their disposal given the appropriate application of force. In this way, "4 ounces" represents the minimum force needed to engage the entire body when receiving or issuing force.
I've developed a simple method of allowing students to experience their own personal "4 ounce" limit. It involves gradually applying force to a structurally sound student until they feel the need to apply force back in order to maintain their balance. The level of force experienced is different for every individual, but the neurophysiological response is the same.
Hope I've answered your questions. Back to mine: What's your experience with the 4 ounce principle?