2C33 Study on mechanism and approach of head trauma accidents of Judo beginner in school education

Abstract

Typical injury in judo is concussion and acute subdural hematoma by head collision to the judo tatami, but effective guideline for prevention based on biomechanical point of view has not been proposed. In this study some Waza to cause a risk to hit a head on a tatami were performed by judo players and recorded by VICON system. These motions were reconstructed by MADYMO by using VICON data and kinetic data and hit part of a head on the tatami, which were used as input data for a FE human head model, were obtained. The strain and stress of the brain tissue were calculated in detail by the FE human head model and injury risk was predicted.