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Gert Corfitzen Jürgensen

Hi, I’m Gert Corfitzen Jürgensen

Martial Arts Researcher
Author and Blogger

Jissen Karate

The history of the black belt

The history of martial arts belts, particularly the black belt and the introduction of colored belts, encompasses various stories and influences that have shaped the ranking system we know today ...

Kanga “Tode” Sakugawa

Sakugawa Kanga, also known as Tōdī Sakugawa or Tōde Sakugawa, was a renowned martial arts master from the Ryukyu Kingdom, which is now part of modern-day Okinawa, Japan. He lived ...

Overextending/Overstretched!

This article delves into a crucial aspect of martial arts, particularly in Karate – the potential risks associated with overstretching your elbow and knee joints during punching and kicking movements ...