The body is vulnerable when limbs are passed across the center line.
In general, avoid passing your limbs across the “center line” created by your spine. Doing so breaks your posture as you can no longer align your body to face your opponent.
Conversely, try to pass your opponent’s limbs across his center line to compromise his posture. This is a great way to keep him on the defensive and set up attacks.
Some examples of center line crossing:
- Arm drags occur when the elbow is dragged past the center line
- Leg drags occur when the knee is dragged past the center line
- Crossing legs while standing up dramatically compromises your balance.