[vaalmerruutel]

Hello Red_Xavier, and Welcome to the Kendo world.

I'm just a beginer myself, altough I'm now on the bogu section. I still remember my first couple of keiko some time before the summer.

In my case I almost pased out in the first two sesions, not in the suburi (the cuts that you do after warm up, and before the techniques), but a little latter. And when I mean passing out, I really mean that I needed to sit and to put my head between my legs.

The jumping thing is called haya suburi. I think that there's nothing like practicing, you will discover quite fast that learning how to do the cuts properly will reduce your energy spending, this whay you will resist more time. But from my little experience, you can try to sincronize your foward jumps with your cuts, and don't try to jump madly, it's more an issue of control your movements than an excerice to spend energy.

Same thing for the feet, even if in this issue it also depend on the type of skin you have (I'm one of the lucky ones). You can do a simple thing, go barefoot a home.

The good thing about all of this is that I enjoy each one of the Keikos I do.

Good luck and enjoy