The Yonkyo aikido technique, the 4th technique, is a basic pinning technique that practitioners and students of the martial art should learn and master. This is quite uncomfortable to perform because of the pain it will inflict though some may exhibit high pain tolerance still for others this technique is quite painful for them.
The Yonkyo is seldom practiced in just one place in the aikido curriculum but can mostly be understood and easily mastered as a standing technique. In addition, this is also one of the most powerful techniques in the martial art but sadly speaking not all sensei (teachers) favored this because it doesn’t follow on the principle of aikido which is a harmonious and peaceful way of art.
Nonetheless, the Yonkyo technique must still be learned by the practitioners and students to harness themselves from all types of aikido techniques.
Generally, the Yonkyo aikido technique is used to block the attacker’s balance and distract him or her by the use of pain pressure.
Execution:
1. Initially, the use of grip is relatively similar with a sword grip where both hands are twisted inward and the grip power comes from the little finger.
2. Try to snatch the opponent’s wrist similar when you grab a sword to perform the technique correctly.
3. Remember that when performing the yonkyo pressure use the base knuckle of your front index finger. Again, continue on your little finger grip in the opponent’s wrist to prevent from lessening the effect.
4. Next, the base knuckle of your index finger should press the opponent’s
wrist mainly the inside flesh then turning it outwardly to the lower arm bone on the thumb side of the arm. Remember, the turning motion is the main cause of the pain and not the initial pressure done.
5. Moreover, when the opponent’s arm is held you need to apply pressure so both the upper and lower arm are roughly at a 90 degree angle thus, making the wrist more susceptible to the tactic.
6. Finally, make sure that when doing the Yonkyo technique don’t rely on the pain you’ve inflicted to take down your opponent but instead use it to block his/her attention and balance. Once balance is broken, that’s the time you push and take down your opponent on the floor.
To give you a bigger and clear picture on how to execute the Yonkyo aikido technique you can check the video above.

















