by klonk on Wed May 01, 2019 8:29 pm
The technique shown first, diagonal tip-over, is real karate, we call it over the heel, but in this clip it looks like something you can do every time. That is not quite true. I know about it, so good luck doing that to me.
Variations follow. If you want to learn karate, I recommend Shotokan.
I define internal martial art as unusual muscle recruitment and leave it at that. If my definition is incomplete, at least it is correct so far as it goes.