A walking assistance device for apoplexy patients has been developed. We developed a walking assistance device RE-Gait®, which assists the motion of the ankle joint while walking. The motor is controlled according to the walking phase grasped with the pressure sensors under the sole. It is already utilized as a product, for the gait training by so many hemiplegic patients. By using the technology of RE-Gait®, a new device for the able-bodied elderly to promote exercise was also developed. This is RE-Gait®Light, which is lower cost, very light, and easy to move. We proposed a new control method for this device, which is automatically tuned according to the condition of the emotion of the user. In this chapter, the evaluation results using this method are introduced.
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