Abstract
Thoraco-abdominal injury is the most dangerous trauma from press load is the most dangerous trauma for crowd accident. The purpose of this investigation is to understand criteria of this injury. In order to develop criteria for thoraco-abdominal injury from press load, the present study conducted volunteer experiment that applied mild press load and measured vital signs. As results, experimental condition of chest: 20kg abdomen: 30kg have a baneful influence on dynamic state of aspiration.