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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 ...

The use of Hikite

To unleash the full force of a punch, it's crucial for both arms to work in harmony, a principle frequently emphasized in the Dojo. One arm (the fist) is thrust ...

Meniscus injury

A meniscus injury refers to damage or tears in the meniscus, which is a C-shaped cartilage found in the knee joint. Although karate is not typically associated with a high ...