Nage’s initial movement is the same for all ushiro ryokatatori waza. As Uke attacks coming around to grab both shoulders from behind, Nage blends and propels Uke forward off-balance. The footwork is critical to get the required ‘sling-shot’ affect.

Footwork

Nage first steps to the side, out of the way of Uke and then crosses slightly forward with the other foot and finally steps through with the trailing leg, pulling Uke through and forward with the leading shoulder. Nage then takes a large step back behind Uke and is then in position to do a variety of techniques such as ikkyo, nikyo, sankyo, yonkyo, kokyunage, kotegaeshi, iriminage (2 ways), kaitenage, shihonage.

Ikkyo

The large step back is important to get the required ma-ai. If this step is too small then the result is tangled arms in too close proximity.

Nikyo

The initial movement is the same as for ikkyo. After Uke‘s arm is ‘pinned’ then rotate into the nikyo osae, then tenkan and bring the pinned hand to the shoulder. Apply the nikyo ‘bowing motion’ and take to the mat in ura.

Sankyo

Same as ikkyo initial movement but the sankyo pin and take-down. Nage can apply either omote or ura.

Kotegaeshi

The large backward step is important. If Uke doesn’t let go on the backward step then Nage uses his shoulder to apply the kotegaeshi throw rather than struggle to release and grasp Uke‘s hand.

Shihonage

Uke‘s hands become ‘wrapped-up’ and trapped after the tenkan turn.

Iriminage

Two ways are possible.