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논문 기본 정보

자료유형
학술대회자료
저자정보
Hosu Lee (Gwangju Institute of Science and Technology) Amre Eizad (Gwangju Institute of Science and Technology) Sanghun Pyo (Gwangju Institute of Science and Technology) Hoyoung Kim (Gwangju Institute of Science and Technology) Junyeoung Lee (Gwangju Institute of Science and Technology) Jungwon Yoon (Gwangju Institute of Science and Technology)
저널정보
제어로봇시스템학회 제어로봇시스템학회 국제학술대회 논문집 ICCAS 2021
발행연도
2021.10
수록면
1,414 - 1,417 (4page)

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초록· 키워드

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An active knee orthosis can support a patient’s weight and assist the knee during stance phase for improved gait assistance. This paper presents the development of a lightweight active knee orthosis (AKO) for post-stroke gait rehabilitation that is capable of providing assistive torque in a pattern that is similar to the natural pattern of the human leg. The proposed system is designed to be lightweight and comfortable to use. The system utilizes a single series elastic actuator and is controlled using the patient-driven motion reinforcement (PDMR) control to provide assistive torque to the user’s knee based on the force information gathered from its series elastic link. A pilot study was performed with one young healthy subject wearing an ankle weight (4 kg) on one leg, in order to identify the effects and potential implications of using the AKO for gait assistance of hemiplegic subjects. No discomfort was reported by the participant during the gait trials. Addition of the ankle weight reduced the knee movements, gait speed and gait balance, while increasing the knee range of motion asymmetry. While using the AKO, the subject was able to overcome much of the detrimental effects of the ankle weight and show improvements in majority of the outcome measures. Thus, the developed AKO exhibited promising outcomes in this pilot study that warrant further studies to better understand the implications of using this system during gait rehabilitation of stroke survivors.

목차

Abstract
1. INTRODUCTION
2. SYSTEM DEVELOPMENT
3. PILOT TEST
4. RESULTS
5. CONCLUSION
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