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**varrozans** · 08-17-2007, 12:34 PM

This is interesting as I was told that the floor in Noma Dojo did not have springs. Yushikan Dojo in Tokyo is a private dojo run by Takahashi Sensei. I was told he copied the design of the Noma Dojo for his floor which he built himself.

The design he used was arched joists. You can clearly see the upward curve of the floor from the edge to the middle as you stand back and look at it. It is very springy and gives great energy to your footwork.

Tokaidai put in a sprung floor in their dojo and the students began having leg injuries. Seems the floor is too springy.

My home dojo is on the second floor so the spring is derived from downward deflection into the space below. With enough people in there it will suck the door open if it does not get latched.

I would really like to see those pictures.

08-17-2007, 12:34 PM	#21
varrozans Join Date Oct 2005 Posts 390 Senior Member	This is interesting as I was told that the floor in Noma Dojo did not have springs. Yushikan Dojo in Tokyo is a private dojo run by Takahashi Sensei. I was told he copied the design of the Noma Dojo for his floor which he built himself. The design he used was arched joists. You can clearly see the upward curve of the floor from the edge to the middle as you stand back and look at it. It is very springy and gives great energy to your footwork. Tokaidai put in a sprung floor in their dojo and the students began having leg injuries. Seems the floor is too springy. My home dojo is on the second floor so the spring is derived from downward deflection into the space below. With enough people in there it will suck the door open if it does not get latched. I would really like to see those pictures.
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