The phrenic nerve controls the diaphragm. When the solar plexus is compressed violently, the nerve sends an overload of static to the brain. The diaphragm freezes. The fighter gasps but cannot inhale. This is not a lack of air; it is a temporary paralysis of the breathing muscle. For 10 to 30 seconds, the victim is conscious but effectively suffocating.
: Perform the movement without a target to sharpen the transition between defense and offense. deep belly punch