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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Hussein, S. Schmidt, H. Kruger, J. |
| Copyright Year | 2009 |
| Description | Author affiliation: Rehabilitation Robotics Group (IPK/TU Berlin), Faculty of Mechanical Engineering, Technical University of Berlin, 10587, Germany (Hussein, S.) || Rehabilitation Robotics Group (IPK/TU Berlin), Automation Technology Division, Fraunhofer Institute IPK, 10587, Germany (Schmidt, H.) || Automation Technology Division, Fraunhofer Institute IPK, 10587 Berlin, Germany (Kruger, J.) |
| Abstract | In industrialized countries stroke is the major cause for physical disabilities in adults. In various clinical studies gait therapy with the help of the electromechanical Gait Trainer GT-I proved to enhance the rehabilitation outcome for subacute stroke patients. This paper presents control methods that were developed to enable variability during treatment in order to further improve gait therapy with this class of devices. The algorithms suitable for the Gait Trainer GT-I are analyzed in a simulation study. Therefore models which simulate the practicing subjects' behaviour were developed. A purely mechanical mass-damper system models the passive subjects behaviour while motor learning models were adopted to simulate patient adaptation different types of footplate guidance characteristics. Several adaptive approaches have been developed for other rehabilitation devices in the past. In this work two controllers were developed and evaluated. The first features a one dimensional control window along the footplate trajectory within which the patient is only slightly guided. Outside the window a force field draws the subject back to the window. The second algorithm extends the window controller with a human motor learning strategy for to adapt the window size and thereby the assistance provided to the subjects. They were tested in a simulation study with different human behaviour models, the results are presented in this paper. |
| Starting Page | 366 |
| Ending Page | 371 |
| File Size | 754736 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424437887 |
| ISSN | 19457898 |
| DOI | 10.1109/ICORR.2009.5209485 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-06-23 |
| Publisher Place | Japan |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Legged locomotion Motor drives Hospitals Velocity control Humans Medical treatment Manuals Rehabilitation robotics Adaptive control Extremities |
| Content Type | Text |
| Resource Type | Article |
| Subject | Rehabilitation Control and Systems Engineering Electrical and Electronic Engineering |
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