Yokomenuchi kokyu nage (Aiki nage) has been part of Aikido since the beginning of the Art. There are numerous recordings of O’Sensei demonstrating the technique dating back to the 1930’s.
The below video is an informal recording of seniors from our dojo experimenting and basically having fun with how atemi (striking) and kiai (yelling when executing a technique) impact on its execution and the person receiving the technique. The recording was made at the end of a Saturday class on 18 July 2015.
A video of Master Koretoshi Maruyama providing formal instruction on Yokomenuchi kokyu nage can be found in the technique library section of this site. For a direct link see here.
All the best
Aikido Warior Dojo