<prompt> Pressure upon the chest leading to a so of mechanical fixation of chest and thereby preventing respiratory movements seen inGaggingChokingSmotheringTraumatic asphyxia  <response>: Traumatic asphyxia the term traumatic asphyxia or crush asphyxia is applied where there is pressure upon chest leading to a so of mechanical fixation of chest and thereby preventing respiratory movements. Eg: burial under the rubble of a collapsed building. Crushing under an automobile. Etc Ref: TEXTBOOK OF FORENSIC MEDICINE AND TOXICOLOGY KRISHNAN VIJ PAGE 118 