- Denver Post
A crowd gathers around Paul Maruyama, left, as he
enlists the help of Robin Chalcraft, 8, of Monument,
who uses the mallet, or kine, to pound the rice that
sits in the mortar, or usu. The Mochitsuki, or rice-
pounding event, was held on Colorado College’s
campus in Colorado Springs.
After pounding, the mochi is shaped into squares or balls and added to soups or coated with a red bean and sugar sauce, sesame seeds and sugar, and soybean flour and sugar. Its elastic nature symbolizes strength, and its white color, purity.
"The mochi signifies long life and, if you stretch it, it doesn't come apart easily, so it signifies tenaciousness for the rest of the year. That is why mochi is so popular at the beginning of the year," Maruyama said.
For the karateka practicing Sanseiryu kata, there is a mindset that must be applied to make it work. This is not your white-belt Sanchin where the practitioner flexes muscles and shows what kind of beating can be taken. It's not the shodan Seisan where the student engages in simple thrusts and strikes. Sanseiryu is the domain of the mature athlete. And once you "get" how Sanseiryu should be done, then you're supposed to revisit Sanchin and rethink your entire approach to martial arts. Or so they say...
We all have our means of communication, and that largely depends on culture and education. For the Okinawans teaching the average fisherman/farmer, there must be a concept that the student can relate to. For them, it is the elastic nature of mochi. Every Okinawan can relate to mochi.
For Americans, it's a different story.
As a systems physiologist and part-time physical trainer, I understand the the physiology involved, and the concept of plyometric training. Think of the possibilities in terms of 3 different types of "spring" movement.
..... COMPRESSION/EXTENSION
Here are some common compression springs used in devices such as a Bic pen or even an automobile suspension system.

Now look at these motions, and visualize the compression spring.
.....


......... Squatted Jump ................. Depth Jump
.......... TORSION
Check out these common torsion springs.

Now look at these motions, and visualize the torsion spring.
.....


..... Seated MB twist ........... Partner MB twist
..... FLEXION/EXTENSION
Rather than use a spring (which I could...) I will instead use the modern pole valut pole to illustrate this concept. Here's the great Sergei Bubka storing energy in a flexible rod. What happens next seems like magic.

Now look at these motions, and visualize the flexible rod.
.....



............ Back Toss ......... MB Lateral Bends .......... Push Away
.......... FROM INANIMATE TO ANIMATE
The elastic springs and rods are examples of a capacity to store energy in a passive fashion. We can also use chemical, hydraulic, and electrical analogies here. But with the human body, we have more than the passive elastic properties of human muscle. We have an active neuromuscular response to rapid stretching in the form of the dynamic stretch reflex. Plyometrics aren't about building muscle; they involve learning about and enhancing that neuromuscular response.
Sanseiryu is all about discovering and taking advantage of these motions. And when you get it right, then you should be taking all that back to Sanchin kata. Once you do, the "Uechi robot" goes out the window.

Understand that everything in Uechi is understated. This means that the final compression is slight, the torsion subtle, and the flexion not much more than a hip tuck focus and slight abdominal crunch.
Some side notes... Gushi sensei could not overemphasize the need for all whose Sanseiryu he viewed to capture and utilize this type of elastic energy. And with my Fuzhou Suparinpei, I find that it begs the practitioner to take those concepts to an even higher level.
- Bill