A computer simulation is a mathematical algorithm that predicts the behavior of a system based on the laws of physics. The Articulated Total Body model (ATB), is one such simulation package that was developed to model the dynamic biomechanical response of the human body to various loads. ATB provides a simulation of the motion and forces experienced by a person during an accident; these can then be used to determine what injuries could (or could not have) resulted from the accident. While ATB was originally created to model human occupants in vehicular crashes, its inputs and algorithms are general enough that it may be used to predict the gross motions of human bodies and mechanical objects during many events. The following are samples of some ATB simulation results we have generated which have been used either in settlement negotiations or at trial.