Katame-no-kata
Katame no Kata (固の形?, Forms of grappling) is one of the two Randori-no-kata (乱取りの形?, Free practice forms) of Kodokan Judo. It is intended as an illustration of the various concepts of katame-waza (固技?, grappling techniques) that exist in judo, and is used both as a training method and as a demonstration of understanding.
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