Evaluation of the walkway through the change of the stride length measured by shoe attached imu sensor

The aim of this study is to measure the gait features and global position of the pedestrian in the outdoor environment by using shoe attached IMU sensor and GPS, and visualize the stride length on a geographical map in order to investigate the explicit factors in the walkway that changed the gait pattern. The experimental results show that the stride length changed significantly depending on the type of the walkway such as slope and curve. Even in the similar flat walkway, the stride length changed when the pedestrian tried to avoid an obstacle or the other pedestrian. These results suggest that this method has the potential to actualize implicit factors such as the risk of fall hidden in our daily environment.