The amount and rates of elderly fatally injured in traffic crashes in Japan are increasing. These tendencies are especially sensitive for thoracoabdominal injuries. In order to investigate this problem, a finite element model of an average size Japanese elderly with age-specific thoracic characteristics was developed. The thoracic response of the model was validated against age-dependent corridors developed from post mortem human subject pendulum impact tests. Full body trajectories and

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... deformation were also assessed against frontal impact sled tests. The model shows good full body kinematics response as well as sensitivity to age-dependent characteristics.