So many people suffered damages during massive earthquakes occurred before now in Japan. The cause of injury were not only due to overturning of furniture, but also hitting their head to the wall or falling over themselves. To develop a prediction methodology of human injury caused by hitting to the wall or falling due to shaking is important to draw up a strategy for prevention of human damage. A seismic analysis model of human body would be useful to predict human injury during an earthquake.
In this study, shaking table tests with a human subject were conducted to develop a seismic response analysis model of a human body for evaluation of injury during an earthquake. Mechanisms of standing postural control of a human subject were investigated based on the subject’s behaviour measured by 3D motion capture system. Next, a seismic response analysis model of a human body was developed based on a cart-type double inverted pendulum with feedback controller. The model allows us to predict foot displacement and head velocity of a human. Finally, we evaluated head injury probability of human by using head injury criterion (HIC) derived from the head velocity calculated by the human model.