How to Do Yonkyo | Aikido Lessons

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Next technique we’re gonna show is Yonkyo or, number four in the series that our Sensei established. If we work with an Aihanme Gyakutetori, or cross-hand grab. We’re gonna start the technique like we would from Ikyo. Our hands come up. Move my body forward and turn to get my partner’s balance. And lift this all up in front of me so I’m looking at the underside of my partner’s forearm.

The side that my partner’s thumb is on, I’m gonna use the knuckle on my index finger and place it right alongside the bone that’s in my partner’s forearm. And I wanna use the pressure from this knuckle to point my partner’s elbow towards the floor. There’s a, series of nerves that run right alongside the inside of that hand, that if you catch them just right, it kinda feels like you stick your finger in a light socket so this does sting once you find it. Up, over, lift my partner’s arm so I’m staring at the bone and the set of nerves that I’d like to attack. My other hand, again, using the index knuckle of my other hand right against the bone of the forearm.

Use that pressure to point the elbow at the floor. And to finish this pin, I’m gonna put my foot right up underneath my partner’s shoulder and wrap his arm around my knee as I continue to apply the pressure. Good. You can find this technique from, again, any other attack or position would be to find Ikkyo, so show Menuchi. Yokomen. Moritetori. Right. Yonkyo. Number four.



  1. @1:32 The Okki attacked Shomen Uchi with his left hand…
    @1:33 Suddenly the Tori was holding his right hand, as if it was the hand attacking.

    That's disturbing, I was planning to watch the technique flow, but this disappointed me.

  2. (which are too many to mention)
    you know. do not under estimate aikido women 🙂 especially those who specialize on it. even men of aikido who are small and thin, haha like my sensei (shhhh)
    i can even literally break an ORDINARY PERSON'S arm (like thugs who doesn't know how to fight).. if i need to.
    in my 2 months of training until now.. and some research about aikido, aikido is more LIKE a defensive type of fighting. its like using your opponents ENERGY to take him down

    LOL. IM A SMALL GIRL BUT IN 2 MONTHS OF TRAINING (especially if you put hard work on it and depending on how good your sensei is) I REALLY SEE HOW GOOD THE RESULTS ARE. everyday i ask my older and younger brother (whos taller than me, both of them are "almost" 6 footers, im only 4 feet and 11 inches) to be my "training dummies". aikido is not only about yonkyo. there are a lot of techniques out there that you can use

  4. watching a 2:02 minute vid isn't going to help if you're not going to train the proper way. 2 years of training is just the same as this short clip.

  5. Women of Japan Police Department study aikido exactly because of that, they can use the strength of their opponents. Please do some research before posting bullshit… and if your girlfriend doesn't train aikido, there's no point in trying this with her. Go to a dojo, ask for a woman to do yonkyo or nikkyo on you. Then, come back and reply.


  6. I had the same isue with aikido until an expert explained it to me. It' because in real world aikido isn't meant to be performed from static position but from the point of intent, meaning you're suposed to blend in atacker's energy. Pull when you're being pushed, push when you're being pulled. But to fully understand the principles of the art it would take years, until then it's still going to look like choreography. Hope this helps 🙂

  7. Thats why you add an atemi(Strike) to loosen up the attacker before the lock/throw is applied. Look at Daito Ryu Aikijujutsu vids, You'll see lots of atemi there.

  8. there are strikes in aikido, when you can't use one technique, strike your opponent to loosen his grip, then either follow through with what you were doing, or go ahead and do another technique on him. that's what she should have done to you 🙂 aikido is not always about brute strength

  9. Try remaining relaxed force on force creates a struggle. I f you or your Uke/Tori remain their is almost a guarantee of the technique working.
    Tips to remain relaxed:
    Focus on correct breathing
    Don't let any distracting thoughts enter your mind
    Focus on your Ki flowing correctly.
    I hope this has aided your practices in Aikido.

  10. At the base of the forearm there are a series of ligaments which stores and protects the main nerve of the arm. You can feel a duo of these if you extent your fingers to the outside of the wrist (similar to Sankyo). The nerve is between these two ligaments, if you apply Yonkyo carefully and penetrate this precise point (remember to strengthen the hold) while using your whole body you will find the nerve. One good thing to try is imagine you are sticking a sword in the ground. Hope that helped 🙂

  11. Is there any other way of doing yonkyo that doesn't involve the nerve ? We have a tennis player here and his nerves on his forearms are numb. We even used a wooden stick to find his nerves but no luck. Any advice ? Thank you

  12. i would like to see a women doing this against a strong man if she cant even move with that arm with any technique..ive tryied this many times with my girlfriend and when i hold her really strong she cant do nothing with me…

  13. Part of being uke (the one who starts the technique, or "attacks) is learning how to receive the technique, endure pain, and help nage (the one who performs or defends) work on how to do it, he's nobody's bitch

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