Dana Sheets wrote:
I really don't think the major goal of jar training is to train the grip. A strong grip is a secondary benefit to the training. The primary benefits are core development and control, whole body connection sensation and development, and an initiation to understanding the use of the breath while the body is supporting additional load. (Besides the mental focus and tenacity that is developed if the training is continued to the point where the jars are quite heavy.)
Dana
If you don't do other kinds of weight training, then this is what comes to you as the primary benefit.
Personally I've been weight training since 1966 (46 years) when my parents bought me my Sears Ted Williams weight set for Christmas. I subsequently got very good instruction at Phillips Exeter in 1970, and even more instruction from the UVa strength coach (and world heavyweight powerlifting champion) in 1983. Let's just say I've been at this thing for a very long time.
I've observed Uechi Ryu practiced in the United states since 1974, and saw nothing but contempt for the salient hand techniques of the system. I've even been ridiculed online here by armchair "experts" in physiology who claim you can't use "Uechi pointy things" when experiencing the Survival Stress Reflex.
The thing is, I really never "got" the Uechi that Ryuko Tomoyose advocated until I started doing certain key exercises. One is a kind of "tripod" pushup that I learned from an Okinawan pangainoon instructor. (Difficult but not impossible to do. Difficult to explain online.) And the other was doing these kinds of boshiken grab exercises.
Sure, sure, there are myriad benefits to doing jar training. I take advantage of all of them. But from my experience with weight training (not bodybuilding), I've found other better ways to accomplish what you're talking about.
The unique benefit of jar training FOR ME is that it woke my Uechi hands up. It isn't that it makes your hands and fingers stronger per se. Other things can do that as well or better. It's that you are grabbing the jars with a classic Uechi boshiken hand WHILE doing Sanchin stuff. Frankly the amount of weight I can hold (and I've seen Narahiro Shinjo hold) with jars doesn't do squat for my core. Olympic-style weight training is much better. But what it does is make me hold my "Uechi hands" while doing other things.
I try to explain what pangainoon means to my students. To me it isn't the literal half hard, half soft. That gets into all the woo woo stuff that does nothing for me and doesn't translate well to my students. I explain that the best metaphor for it is patting your head and rubbing your tummy. Our style is full of places where you have to do two very different things at the same time, and there is a great danger for cross-talk or contamination of one activity into the next. Much of Sanchin study and much of the style is about (for instance) maintaining the firmness of a proper shoken while completely relaxing the muscles antagonistic to an arm extension.
This awakening has only happened to me in recent years since I got bored with certain kinds of training and started experimenting. And now that I've done the jars (and 12-packs of Diet Dew, and dumbbells held sidewards, etc., etc.), my students hate me. I torture them with ease as I grab and poke all over their bodies. My hands and wrists really aren't all that much stronger. But my synaptic patterns (muscle memory) is such that my hands now "get" what Ryuko Tomoyose preached was the unique advantage of what we do.
The other unique benefit of jar training is that it strengthens the fingers, hands, and wrists (muscles and tendons) while elongating rather than compressing joints that are prone to osteoarthritis with age. The joint pulling preserves the articular cartilage surfaces of those joints while building the structures around them. That epiphany hit me while having a discussion with a rock climber who also was a physician.
Just my opinion, Dana.
I do other cool things with the jars too - things other than walking in Sanchin. But again, it's about maintaining that special grip while I do those activities. I'm finding many muscle contraction/relaxation patterns that are worth programming into my body.
- Bill