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Northern Vice

Northern: Moving forward

Vice: Head lock or forearm choke


The Ideal attack requires that your opponent starts in front of you. The initial action commences with your opponent stepping forward with their right leg as they apply a right headlock, or choke, which forces you to bend over. Your opponent completes the headlock, or choke, by placing their right arm under your chin, while grabbing their own right wrist with their left-hand.

Defense Pattern

1. Right Step Forward toward 12:00 into a low Right Neutral Bow Stance while you execute a Left Hand Check to your opponent’s right wrist and deliver a Right Ridge Hand to your opponent’s groin.

2. Deliver a Right Obscure Elbow to the underside of your opponent’s jaw.

3. Shuffle Forward and deliver a Right Inward Downward Elbow to your opponent’s jaw or neck.

4. Perform a Right Front Crossover and Cover Out toward 6:00.

Alternate Names

Though there are similarities between techniques named here the techniques taught in the different branches of the Kenpo family also have notable differences.

We know that each school presents information with a different style and signature that is uniquely associated with their staff and students. Always defer to the instructing staff at your school for guidance should there be any differences in the information being presented.

The American Institute of Kenpo (AIK):

Northern Vice

Ed Parker American Kenpo Systems (EPAKS)*:

Locking Horns

Tracy Kenpo Systems:


*The EPAKS system is copyrighted and all rights are reserved by the Parker Family.

Training Disclaimer

The American Institute of Kenpo (AIK) strongly recommends that all training be overseen by experienced and qualified instructors. Individuals choosing to train without the recommended oversight assume full liability for any and all injuries. In addition, those individuals engaging in training without the oversight of the American Institute of Kenpo’s (AIK’s) certified instructors will be doing so with the understanding and acknowledgment that they are waving subrogation and holding harmless the American Institute of Kenpo (AIK), it's members, and affiliates.

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