Current vehicle safety systems are primarily designed to be most effective for a fixed occupant scenario: A mid-sized adult male seated in a standard posture. Prior studies have, however, confirmed that the state of an occupant, including physical properties such as mass and stature as well as time-varying parameters such as posture and muscular bracing, influence the injury outcome in traffic crashes. To provide a feasible framework for incorporation of occupant characteristics into adaptive restraint schemes, this work evaluates the sensitivity of injuries sustained in frontal ...