Uechi-Ryu.com

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Van

Nakamatsu sensei training.

Very impressive.

http://www.youtube.com/watch?v=ULeE9uNnWLU

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Van

I couldn't get the first clip to work , but like the second , I like the mechanics but personally make them smaller , it is a wave dynamic and a clear weight transfer and double hip , this can be made very internal after a while but nothing wrong with ingraining and doing the mechanic big.

here's a great old clip showing the double hip form Peter Consterdine

http://www.youtube.com/watch?v=tRqfYwhsQdQ

This is extremely educational.

http://www.exercisephysiologists.com/Bi ... lCONCEPTS/

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Van

I've trained for years with Walter Mattson and now with Joe Graziano. Both, especially Walter, have influence from Mr. Nakamatsu. Walter calls a lot of these types of drills "exaggerations" for training so that they soon become natural ways of generating power. Even after 50 years of training there are not many people I'd guess that can generate the kind of power Walter has from a lifetime of proper and thoughtful application of drills like these. Joe puts it this way, make a big move (in practice) because the big move contains the small move (in practical application under stress).

When training I believe Mr Nakamatsu has a principle he is emphasizing, or thinking about. Walter's dojo had a word on the whiteboard for about a year. I believe it was keiko meaning to "think about". Walter used to say without this karate is just a dance.

Nakamatsu sensei is, I believe, an accomplished mechanical engineer and a very smart one indeed, in his research of performance biomechanics.

I have heard the concepts of Nakamatsu sensei and Takara sensei's similar approach_ criticized...but what else is new. We all have different opinions, and such opinions will be respected only if we can provide a credible scientific explanation.

The link I posted sets forth the very scientific principles of athletic biomechanics....

1. Maximum acceleration and efficiency of motion
To achieve maximum acceleration, all available forces should be applied sequentially with proper timing and as directly as possible in the intended line of motion.

Total force
A total force is the sum of the forces of each body segment contributing to the act, if the forces are applied in a single direction and in proper sequence with timing.

A body develops greater velocity as the distance over which the force is applied increases (e.g., for martial arts performer rotates first to increase the force of the kick, as does the athlete who throws the shot).

2.Effect of the angle of application on the force produced
In angular movements of body segments, the maximum effective force and velocity occur when the limb is at right angles to the direction in which the object is moved” (e.g., karate punches in which the arm straight forward, not up or down, so the arm is perpendicular to the body).
Initial muscular tension
Placing muscles on stretch before contraction increases in the force of muscular contraction.

3.Principles of Motion

Principle – Combining translatory (linear) and rotary motion. Effective execution of a successful performance combines translatory and rotary motions.

Once a force (torque) of sufficient magnitude (enough to overcome the angular inertia) is applied to a body, angular momentum will be produced.

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Van

The concepts apply to all body power generation in diverse fields.

I was once a forward soccer striker and this was the coaching for a power strike:

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Van

And as rower...here I am at age 16 in National crewing competition...



And here is the performance context:

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Van

And as a shot-putter in college, the coach .... upon the summation of force

At the time we were using the 'glide method' of throwing the shot.

Here's the Glide I used...http://www.youtube.com/watch?v=FtM49-1w6Gs

Later, the shot throw went to some unbelievable distances due to the 'rotational method'

Watch the famous Randy Barnes in action here ...


http://www.youtube.com/watch?v=1ZdDvlwpe7Q

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Van

An excellent thread , great information

Glad you find it of interest Stryke. I have noticed over time your increased ability to generate power with rotation. Bet you would have found that 'handy' in your hundreds of full contact matches.



This is what we see in Sensei Nakamatsu's concepts...as Josann wrote, in time those circles become almost invisible to the eye as the rotation explosion happens along the body's centerline.

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Van

The summation of motion in rowing is fascinating to examine, given the complexity of the stroke....

1.Catch
Rowers legs and back are fully compressed with shins perpendicular to the water, arms are fully extended as the oar enters the water. As a result the blade of the oar must also be perpendicular to the water.
Blade entry occurs at maximum shoulder extension and is initiated by an independent movement of the handle in relation to the shoulders.

2.Drive
Arms remain straight.
At this point the shoulders and arms provide connection for the power source of the legs, hips and lower back. They do not provide the power!
Legs engage while the back begins to extend.

3.Release
A release angle of 110 degrees in considered optimal.
Hands brush the abdomen, at this point the hands tap down to remove the blade from the water.
Blades are feathered to become parallel to the water and allow for a more aerodynamic position and to allow rowers to clear any wash or rough conditions that may be present.

4.Recovery
The recovery sequence operates in reverse of the drive sequence.
The hands carry the oars to an extended position.
A pivot at the hips occurs, maintaining a strong lower back.
Slide moves when body passes through 90 degrees.
Full body swing is established by half slide.

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Van

Its just an excellent approach , totally agree with first recruiting the mechanics and ingraining the sequences before going smaller.

Here's some striking from Geoff Thompson , going in the direction your going , and incorporating the rotation and the linear to get both halves going , however you produce it its that feeling of torque that you could just see in the clip.

http://www.youtube.com/watch?v=EvEzqysPg2A

appreciating the science and the art takes time , I certainly wish I had the loose power I have now.

Mr. Thompson is quite the striker...and he has proven it over and over in all the street fights he was forced into.

Pretty hard to argue with what we see on this clip.

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Van

Agreed Van , I'm always amazed by the variations and how lots make many things work , but however you do it , what makes it work does remain the same , whether internal/external , big small , principles remain