Why does your kickflip spin backside? (1/2) Foot placement and shoulders

In this video, we will analyze why your board spins backside when you kickflip.
I could flip my board after a while of practice. But I always had difficulty keeping it align with the direction I was going to. It always spun backside and all those existing tutorials always said it's either because of my backfoot or shoulders. I believe the same thing must have happened to you if you find this video.
Let's see exactly what causes the spinning problem.
You can view 3D models from here:
whythetrick.io...
Please visit my website and let’s study skateboarding tricks scientifically and objectively using 3D models and scientific theories.
Please take a moment and try to study this in detail.
I'm trying to eliminate subjectivity from my explanation as much as possible by referring to scientific and physics theories. Please use my 3D models to solve your "why."
#skateboarding
#kickflip
#howtoskate
#スケートボード
#キックフリップ
#3D
#blender
#three.js
Traditionally, skateboarding how-to videos have always been subjective and the majority of explanations are based on speakers' experiences.
To avoid relying on my personal experiences, please fully utilize the 3D models.
All skaters have different questions.
So that you can analyze skateboarding tricks in detail and solve your "whys," those 3D models are made fully interactive.
The 3D models feature these functions below:
change camera angle
adjust play speed
change transparency
display gridlines, etc.
Aside from that, I try to explain concepts of skateboarding tricks based on facts, calculations, scientific and physics theories. I may make mistakes so please leave a comment if you find anything.