Biomechanics examines the forces acting upon the body. As an applied science, the integration of biological structures, mechanical analysis, and movement is necessary to provide insight and understanding of motion.
Forensic Biomechanics characterizes the response of the human body to external forces, specifically the kinetics, kinematics, and the injury biomechanics involved. In vehicle crashes, occupant dynamics, restraint system usage and effectiveness, and external forces are considered to determine injury thresholds and mechanisms.