自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 22    No. 8    August 2015

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Coordinated control strategy for robotic-assisted gait training with partial body weight support
QIN Tao(秦涛), ZHANG Li-xun(张立勋)

College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China

Abstract:Walking is the most basic and essential part of the activities of daily living. To enable the elderly and non-ambulatory gait-impaired patients, the repetitive practice of this task, a novel gait training robot (GTR) was designed followed the end-effector principle, and an active partial body weight support (PBWS) system was introduced to facilitate successful gait training. For successful establishment of a walking gait on the GTR with PBWS, the motion laws of the GTR were planned to enable the phase distribution relationships of the cycle step, and the center of gravity (COG) trajectory of the human body during gait training on the GTR was measured. A coordinated control strategy was proposed based on the impedance control principle. A robotic prototype was developed as a platform for evaluating the design concepts and control strategies. Preliminary gait training with a healthy subject was implemented by the robotic-assisted gait training system and the experimental results are encouraging.

 

Key words: robotic-assisted gait training; gait training robot (GTR); partial body weight support (PBWS); center of gravity (COG); coordinated control strategy; ground reaction force (GRF)

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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