This study proposes a semi-voluntarily motion presentation system based on the force applied to the arm swing mechanism in a locomotion interface (LI) that can present arm swing motion in addition to foot motion during walking. It is considered that the device can be operated by using the force of the arm swing even when the user cannot move the foot voluntarily. We performed a comparative experiment of walking with the automatic method and walking with the proposed method. As a result, it was confirmed that there was a difference in the rotation angle of the body, and the usefulness of the semi-automatic LI that moves by swinging the arm was confirmed.
