Swimming

It can be part of the training.
Just like jogging, just like push up, sit ups, back arch, leg lift, just like skipping...
All of them can be part of the training.

And it will be nice to incorporate all of these into the training.
Each exercise train different things, endurance, stregth, speed, explosiveness...
Even they train the same thing, they may still be training different muscle groups...

Have been trying out the 'core muscle' training.
They said it looks like yoga.
But if it helps, why not?

It is not a must that Karate-do, the empty hands should only focus on hand.
It is not true that Karate training only train you by driling on Kihon, Kata and Kumite.
Sometime, other exercise can supplement the training, providing us with more fundamentals to use, to be better.

Today's 一言：Don't set boundaries around you.