Elbow Lock: Upper pressure

Elbow Lock: Downward Pressure

Elbow Lock: Downward Pressure with shoulder on floor

Elbow Lock: Upward pressure with hand on side

Elbow Lock: Upward pressure figure four wrist hold

Elbow Lock: Upward pressure figure four shoulder hold

Elbow lock with wrist on floor

Elbow Locks:

During a fight, if you can effectively control one the attacker's elbows, you can control the whole body.  Since the elbow is relatively small and slow when compare to the hand, it is easier to trap.  If the hand has to move 3 feet, the elbow only move 1foot.

The elbow is the central pivot point of the entire arm. If the elbow joint is lock, the upper arm is also locked and stops the free movement of the shoulder. 

When the elbow lock is applied, the joint can be hyper extended.  If the joint is hyper extended, there will be damage to the joint, ligaments and muscles.  If twisting and pulling is used with the joint being hyper extended, the joint will dislocate.

When practicing, you will need to go to the point of the elbow joint being hyper extended but not beyond.