It has been determined that abdominal injuries caused by classical submarining do not occur or are of such a limited nature that no further study of this phenomenon is deemed necessary. However, there is a relatively large group of occupants who sustain serious abdominal injuries through dynamic interaction with the restraint system. Most abdominal injuries are probably due to poor initial belt deployment.

It is concluded that the incidence of abdominal injury can be reduced by identifying and quantifying those inherent faults in the design of passenger compartments of specific vehicles.