Glossary of Judo waza (techniques) terms

Ude-hishigi-hiza-gatame (Knee lock)

Ude-hishigi-hiza-gatame (Knee lock)

Summary

This is same type of Waza as the Ude-hishigi-ude-gatame (Arm lock).

Features of this Waza

In the Ude-hishigi-hiza-gatame (Knee lock) Waza, Tori (Player executing technique) uses his knees to perform an elbow lock.

Waza details

When Uke (Player receiving opponent's attack) attempts a Ne waza (Ground techniques), Tori (Player executing technique) grabs Uke (Player receiving opponent's attack) extended hand and performs this Waza by using both knees.
As he grabs Uke (Player receiving opponent's attack) extended arm, Tori (Player executing technique) pulls him strongly forward. Tori (Player executing technique) may do this by pulling Uke (Player receiving opponent's attack) arm beneath his own armpit, or, if Uke (Player receiving opponent's attack) is in a supine posture, Tori (Player executing technique) may lean down over Uke (Player receiving opponent's attack) upper body and wrap an arm around Uke (Player receiving opponent's attack) neck to pull Uke (Player receiving opponent's attack) against him. After firmly pulling Uke (Player receiving opponent's attack) arm toward him, Tori (Player executing technique) scissors it between his legs, and, after locking Uke (Player receiving opponent's attack) wrist, uses his knee to lock Uke (Player receiving opponent's attack) elbow joint.
This elbow joint lock can be performed in a variety of ways. For example, when transitioning to this Waza from the Kesa-gatame (Scarf hold), Tori (Player executing technique) might grab Uke (Player receiving opponent's attack) wrist when Uke (Player receiving opponent's attack) attempts to pull his arm loose from Tori (Player executing technique) grasp, with Tori (Player executing technique) then quickly scissoring it between his legs. Tori (Player executing technique) locks the arm between his leg with the palm of Uke (Player receiving opponent's attack) hand facing up, then presses the side opposite the joint to complete the Waza.
When Tori (Player executing technique) squeezes his knees together, Uke (Player receiving opponent's attack) upper arm is pushed upward, and the lower arm below the elbow is pushed downward, thereby extending and bending the arm. This Waza closely resembles the Ude-hishigi-ude-gatame (Arm lock), and it also uses the "lever principle". This Waza has a high difficulty level.