Release from a Wrist Grab:
This video looks at two types of wrist grab: inline (attacker's left hand grabs woman's right hand), and cross-arm (attacker's right hand grabs woman's right wrist).
|Inline Wrist Grab|
|Cross-arm Wrist Grab|
Key things to remember when performing this technique:
1. No extra movement - keep your movement small and efficient. Don't waste extra energy with big motions because it lessens the efficacy of the technique, and makes it easier for your attacker to fight your intention.
2. Escape must happen where the fingers meet the thumb - this is the weakest part of the grip.
3. Keep turning your wrist - just as a rolling stone gathers no moss, it is difficult to hold onto something that is turning.
Some other thoughts:
These techniques are not enough on their own. They ought to be preceded by a distraction, followed by some sort of counterattack, and then once you've disengaged, just run away to end the encounter.
Now go find someone and practice!