Thanks Markus, is there any video on hifuku undo?
I don't know any video.
It is important to move your upper body like a pendulum (don't shift your hips left and right), and at the same time move your belly front and back, when you are straight move it inside, and when you move left or right, outside.
Let your hands rest on your thighs, relaxed, palms look each other or a little bit downward, and when you move left, your left palm turns upward naturally, and if you go right, your right palm turns upward.
Do one left-right movement per second, or a Little bit slower. it's not so easy to do it right when you move too fast