3x ADCC champion and BJJ black belt Dean Lister shows his latest adjustment to the straight ankle lock which he says is the most painful version so far and it’s 100% IBJJF legal. Lister said that he saw Imanari doing this and he made some changes in the technique, in the foot placement. Lister said that this set up uses so much leverage that it will literally break your opponent’s foot.
The straight ankle lock (depending on how it is performed is known in judo as an akiresuken-gatame or ashi-hishigi) is what is usually thought of as an ankle lock. It is typically performed using the legs to isolate one of the opponent’s legs, and placing the opponent’s foot in the armpit, while holding the foot with the forearm at the lower part of the opponent’s calf, usually at the achilles tendon.
By leveraging the hips forward, the foot becomes forcefully plantar flexed, hence creating a potent joint lock on the ankle. The forearm serves as a fulcrum in the leveraging, and may cause severe pressure on the achilles tendon, especially when the bony parts of the forearm are used. Such a straight ankle lock is sometimes referred to as an “achilles lock”.
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