Bruce Lee - Trapping techniques

Bruce Lee developed hand-and-forearm-only (inherited from
Wing Chun) trapping techniques in it's close-range fighting
method which generally involves hand grabbing , palm-up
hand-blocking and slap-blocking as in chi sao ("sticking
hands") drills, with the intent of blocking or trapping the
opponents strikes alone, in order to set up an immediate
counterstrike.There is no intent of tangling up to put each
other "on-hold", taking-down or submitting the opponent with
these techniques (the "hand-tangling" in "sticking hands" drill
is only for the purpose of practicing hand and forearm
sensitivity and reflex actions), also, the torso itself is generally
not involved, unlike in grappling