The goal of this work is to present methodology to first evaluate the performance of an in vivo spine system and then to synthesize optimal neuromuscular control for rehabilitation interventions. This is achieved (1) by determining control system parameters such as static feedback gains and delays from experimental data, (2) by synthesizing the optimal feedback gains to attenuate the effect of disturbances to the system using modern control theory, and (3) by evaluating the robustness of the optimized closed-loop system. We also apply these methods to a postural control task, with two different control strategies, and evaluate the robustness of the spine system with respect to longer latencies found in the low back pain population. This framework could be used for rehabilitation design. To this end, we discuss several future research needs necessary to implement our framework in practice.
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e-mail: jchoi@egr.msu.edu
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Research Papers
Optimal Control of the Spine System
Jongeun Choi,
Jongeun Choi
Department of Mechanical Engineering, and Department of Electrical and Computer Engineering,
e-mail: jchoi@egr.msu.edu
Michigan State University
, 2459 Engineering Building, East Lansing, MI 48824-1226
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Jacek Cholewicki
Jacek Cholewicki
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Yunfei Xu
Jongeun Choi
Department of Mechanical Engineering, and Department of Electrical and Computer Engineering,
Michigan State University
, 2459 Engineering Building, East Lansing, MI 48824-1226e-mail: jchoi@egr.msu.edu
N. Peter Reeves
Jacek Cholewicki
J Biomech Eng. May 2010, 132(5): 051004 (10 pages)
Published Online: March 25, 2010
Article history
Received:
May 20, 2009
Revised:
December 17, 2009
Posted:
January 6, 2010
Published:
March 25, 2010
Online:
March 25, 2010
Citation
Xu, Y., Choi, J., Reeves, N. P., and Cholewicki, J. (March 25, 2010). "Optimal Control of the Spine System." ASME. J Biomech Eng. May 2010; 132(5): 051004. https://doi.org/10.1115/1.4000955
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