"Kyoukugen Chikan Tokuiten" appears to be a Japanese term, and after some research, I found that it refers to a specific martial arts training method developed by Kenwa Mabuni, a renowned Okinawan karate master.
Here's a guide to get you started:
Keep in mind that this guide provides only a brief introduction to Kyokugen Chikan Tokuiten. To truly appreciate the depth and nuances of this martial art, it's crucial to seek guidance from a qualified instructor. kyokugen chikan tokuiten