WALKING MOTION ASSIST DEVICE

A walking motion assist device for assisting a wearer in rotationally moving an ankle joint of the wearer includes: a drive motor; a drive mechanism that is capable of rotating coaxially with the ankle joint by way of the drive motor; a control device that controls driving provided by the drive motor; a storage that stores a basic movement pattern and a corrected movement pattern that represent time-series changes in ankle joint angle in a gait cycle; and a calculator that obtains the corrected movement pattern by correcting the basic movement pattern based on input by an operator. The basic movement pattern is represented by a polygonal line or a Bézier curve, each of which includes a plurality of predetermined points serving as inflection points, or a combination of thereof, the calculator generates the corrected movement pattern corrected by adjusting positions of the plurality of predetermined points on the basic movement pattern, and, based on the corrected movement pattern, the control device controls driving provided by the drive motor.