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Gert Corfitzen Jürgensen

Hi, I’m Gert Corfitzen Jürgensen

Martial Arts Researcher
Author and Blogger

Jissen Karate

The effect of yelling

Screaming and vocalization play a significant role in various sports, including martial arts. In disciplines such as karate or kung fu, screaming during strikes is a common practice believed to ...

History of the karate-gi

The development of the judogi can be attributed to Grandmaster Jigoro Kano, the founder of judo, during the late 1800s. Kano aimed to create a durable training uniform capable of ...

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 ...