简介:Theexperimentalstudywasperformedin78rabbits,theexposedanteriorven-tricularsurfaceoftheopen—chestrabbitswereimpactedwithapendulum—likemovementimpactorsystemwhichwascontrolledbytheCardiaccycle.Undrsomegivenconditions,theexperimentalresultswereasfollows:(1)Theimpactsat5.0m·s-1resultedinnocardiacruptureinallattemps(16/16)attheendofsystoleas