Hyvä kirjoitus 90 asteen säännöstä jiujitsussa...
DSTRYRsg: Destroyer Submission Grappling and Brazilian Jiu Jitsu: AND KNOWING IS HALF THE BATTLE: THE 90 DEGREE RUL...: "Like everything in the universe, grappling conforms to the laws of physics. When teaching certain techniques, it’s best to frame the i..."
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Love this concept. As much as I'd seen it demonstrated in class, I didn't get it until having it spelled out.
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