
KANSETSU WAZA (joint locking techniques):
Joint locking techniques (kansetsu waza) are mainly used at half distance. Kansetsu waza are based on uke getting into a situation where he or she has to give up or perform a break fall or lie down.
The starting position during basic technique training is a diagonal wrist grip with
same side foot forward as hand. From basic technique, the technique is then trained in movement, based on various possible attacks (e.g. grabbing clothes, strangling, backhand strikes), which must be dynamic.

1. OMOTE/URA UDE OSAE:
Ude osae is often called ”laying down the arm”, the more correct translation is ”arm press” or ”held arm”. The basic technique is performed in two different variants:
The variant Omote ude osae:
The technique is performed on the inside of your uke, Omote (”positive”) ude osae.

• The starting position: Lower your elbow and point your fingers towards uke’s nose. The right hand grasps the uke’s wrist.
.

• Your left hand and thumb grasp
elbow crease and with a
simultaneous breaking of balance, one takes a sliding step forward with the right leg. The right hand is then brought towards the center of the uke. Work towards the center line (as if you would cut someone in front of You).

• Keep your grip and take a step forward with
left leg. It is important that uke’s arm is held higher than his/her shoulder.
Continue forward/downward pressure, while
you work with Your hip forward. It is
important to coordinate the arm press with
Your hip thrust forward!

• After Ude osae, you end with one
appropriate control grip (provided that there are no multiple attackers).
The variant Ura ude osae:
The technique is performed on the outside of the uke, Ura (”negative”) ude osae.
The variant Ura ude osae:

• The starting position.

• Same entrance as in Omote Ude osae.
• In your entry (irimi), uke will resist and prevent both your entry and your attempt to unbalancing, then you shift to Ura (negative) ude osae. I.e. you don’t resist the force, go with it instead!

• Rotate on the outside of uke (soto kaiten) with one big left step. There is no arm strength here involved, it is your hip and body rotation that is important. Swing your arm down towards your hip and the mat (as if you were going to cut someone who stands behind you). It is important to coordinate the arm press with your body and hip rotation!

• After Ude osae, you end with one
appropriate control grip (provided that there are no multiple attackers).

osae
The important grip in Ude osae:
- Right hand grips around the wrist
- Left hand and thumb grips the
elbow crease from below