Putting opponents under a tremendous strain is what ensures successful submissions in Brazilian Jiu-Jitsu. Leg locks are one of a large number of BJJ moves that are used for this purpose. If you perform leg lock perfectly, you can easily put your opponent under enough strain that they will tap you to accept their defeat.
Though there are escaping techniques from leg locks as well, they are considered the most effective way to go for submitting opponents. However, inappropriate execution of this technique can result in severe BJJ injuries like torn ligaments and hyperextended joints.
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