“Uprooting” is when you break you opponents Balance or disrupt his
stance. This is a easier principle to see rather than describe esp
to an untrained person but the basic idea is to move (and keep) the
opponent off balance as much as possible. People have
an instinctive fear of falling so they will try first to
maintain or regain their balance. While they are busy with
getting their stance back they are open to attack.
The balance may be disrupted by the use of “sweeps”, “Reaps”
“Wheels” as well as various takedowns and moves to take the
opponent out of “bone-alignment”. Pulling type “traps” such as a
“pak sao” or “Jut sao” work well also