Irimi tsuki: The Perfect Synthesis of Ikkajo and Irimi-Nage
When I watch Shioda Sensei, Takeno Sensei and Mustard Sensei do jiyu waza, the movement that always strikes me as amazing is Irimi tsuki. As a technique it is the essence of simplicity just like Ikkajo and it requires confidence and timing like a well excuted Irimi Nage.
What I want to first communicate how this technique reminds me of studying Iaido, like all things it is so tempting to add to what you're doing. However, every additional movement, every extravagance only serves to slow down the technique and reduce it's combat effectiveness and moves it further from the principles upon which effective technique can be built.
If I'm perfectly honest I find this technique really intimidating to uke for, and if I know that the shite that I'm practicing with is good at it, I'm aware that they could use it and I slow down my attacks as a result. This is a total falseness. You cannot uke with a preconcieved knowledge for what might happen, a combative response should be intuitive and building in these calculating elements serves only to prevent both uke and shite learning.
http://www.youtube.com/watch?v=aqK8p_NQV8U&feature=related (watch at 55 secs for about 10 seconds)
I watched Shioda Sensei do this technique and the impact that it can have on uke like Ando Sensei, and I thought that if I am going to teach this technique in the dojo I absolutely have to start with the ukemi. It was a lovely opportunity to consult my notes from Mustard Sensei and Thambu Sensei that I made last summer and develop a simplicity to my shite waza and structure to my uke waza.
In the class on Monday night we have a real mix of abilities, however, none of them have ever studied Irimi tsuki and it's ukemi. Firstly I wanted to impress upon the group that you may not resist. Ever. Shite would stand in shizentai with his hand out stretched, uke would approach and when their chin hit the palm of shites hand they would bend back and make sure that their feet would pass the back heal of shite.
I think it is really dangerous when uke attacks, notices the technique and then tries to step back out of it. This is where the ukemi for Irimi Nage and Irimi Tsuki part, physiologically this is because of the body control difference between these two techniques. As ukes head is taken so far back and so fast Irimi Tsuki requires a specific ukemi, also Irimi Nage is a body control technique and uke can in part dictate the fall.
Once uke is used to bending their back and still moving foward, we then looked at building in a variation of yoko ukemi. The leg furtherest from shite would straighten allowing uke to fall to the floor and slap the mat. Following the same ukemi technical elements involved with hiraku ukemi.
I then moved on to the shite waza. I was really keen to make sure that everyone understood that you should not add anything to the technique, and infact there are many more technical elements shared with Ikkajo than Irimi Nage. The foot movement is essential shaku dosa, where shite moves in a cherveron shape so that shite moves off ukes attacking line and approaches uke from a 30 degree angle.
Takeno Sensei demonstrating Irimi Tsuki
Each sliding step is into 80/20 and we have to be mindful of the lead hand. Under no circumstances should shites arm move out their own body line. Two commen mistakes are bending the arm in the form of a choke slam (although that'd be cool!) or even if the arm is straight it moving out at right angles to shites hips.
I found making uke and shite for this technique really enlightening and further illustrates to me two things; one, shite much move into 80/20 with a strong feeling of jushinmae (always forward) and two that you shouldn't engage the shoulder to try and topple/tip/slam uke into the mat. If you adhire to these elements then you will throw uke through the cracks in the mat, and if you can uke for this technique then you can be virtually fearless.
Happy training. Osu!