Abstract
It is essential to conduct the experimental study using a biological tissue in order to acquire the process information relative to injury mechanism in the traffic accident. In terms of car-pedestrian collision, a number of studies that investigated the effects of vehicle factors on pedestrian leg injury which means impact velocity, vehicle type, and so on have been carried out. However, the effects of pedestrian factors on one's leg injury were seldom investigated in the past. We have performed side impact tests using porcine hind legs and investigated the effects of ground contact that one of the pedestrian factors considered to affect pedestrian leg injury. The ground contact made the maximum shear strain at femoral medial diaphysis increase and the translation motion velocity at femur and tibia following impact decrease. These results showed that the ground contact certainly affects the lower extremity injury.
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