仮想障害物をAR提示する松葉杖歩行訓練システム

抄録

Crutches are often used to relieve a load on the lower limbs. When an inexperienced patient of using crutches walks with crutches, the walk motion sometimes becomes irregular and the patient tends to lose the body balance. Therefore, in this research, a crutch walk training system with AR technology was proposed focusing on an obstacle avoidance. In this paper, a training space of crutch walks where AR markers were attached on the walkway was developed. When a crutch user who wears a see-through HMD walks, and the camera of the HMD detects an AR marker, a virtual obstacle is presented at the place of the AR marker on the HMD. The experiment participant was directed to avoid the virtual obstacle, and the accelerations of the user’s head were measured. As a result, it was found that the accelerations of the crutch user’s head changed irregularly when a virtual obstacle was presented in front of the crutch user on the HMD. It is expected that by repeating such a training, the inexperienced crutch user will get used to a proper walk method with crutches.