Thumb Screw

This is the basic Thumb Screw used when Uke uses excessive pressure to cause Nage pain when shaking hands. There are probably better ways to deal with these jerks in this situation but the thumb screw does have practical self defense applications. If Nage is careless the Thumb Screw can be used to defend against Nikkyo.

Fig. 1 Start		Fig. 2 Thumb Over Thumb		Fig. 3 Hand Over Thumb

1. Fig. 1 shows the start with a hand shake.

2. In Fig. 2 Nage's thumb is placed on top of Uke's thumb between the knuckles. This gives a ridge to press against Uke's thumb.

3. In Fig. 3 Nage's free hand is then placed on top of Nage's thumb to apply pressure.

   Fig. 4 Press And Rotate		Fig. 5 Finish

4. In Fig. 4 Nage is pressing down on Uke's thumb and rotating Uke's hand.

5. Fig. 5 shows the completion of the static technique. If Nage combined this hand work with Aiki movement Uke would be easily thrown.