Intrinsic muscle properties facilitate locomotor control - a computer simulation study. Gerritsen, K. G., van den Bogert, A. J., Hulliger, M., & Zernicke, R. F. Motor Control, 2(3):206–220, July, 1998. doi abstract bibtex The purpose of this study was to investigate, theoretically, to what extent muscle properties could contribute to recovery from perturbations during locomotion. Four models with different actuator properties were created: the FLVT model, which encompassed force-length (FL) and force-velocity (FV) characteristics of human muscles as well as muscle stimulation inputs as functions of time (T); the FLT model, which had muscles without force-velocity characteristics; the FVT model, which had muscles without specific force-length characteristics; and the MT model, which had no muscles but was driven by joint moments (M) as a function of time. Each model was exposed to static and dynamic perturbations and its response was examined. FLVT showed good resistance to both static can dynamic perturbations. FLT was resistant to static perturbation but could not counteract dynamic perturbation, whereas the opposite was found for FVT. MT could not counteract either of the perturbations. Based on the results of the simulations, skeletal muscle force-length-velocity properties, although interactively complex, contribute substantially to the dynamic stability of the musculoskeletal system.
@article{gerritsen_intrinsic_1998,
title = {Intrinsic muscle properties facilitate locomotor control - a computer simulation study},
volume = {2},
copyright = {All rights reserved},
issn = {1087-1640},
doi = {10.1123/mcj.2.3.206},
abstract = {The purpose of this study was to investigate, theoretically, to what extent muscle properties could contribute to recovery from perturbations during locomotion. Four models with different actuator properties were created: the FLVT model, which encompassed force-length (FL) and force-velocity (FV) characteristics of human muscles as well as muscle stimulation inputs as functions of time (T); the FLT model, which had muscles without force-velocity characteristics; the FVT model, which had muscles without specific force-length characteristics; and the MT model, which had no muscles but was driven by joint moments (M) as a function of time. Each model was exposed to static and dynamic perturbations and its response was examined. FLVT showed good resistance to both static can dynamic perturbations. FLT was resistant to static perturbation but could not counteract dynamic perturbation, whereas the opposite was found for FVT. MT could not counteract either of the perturbations. Based on the results of the simulations, skeletal muscle force-length-velocity properties, although interactively complex, contribute substantially to the dynamic stability of the musculoskeletal system.},
language = {eng},
number = {3},
journal = {Motor Control},
author = {Gerritsen, K. G. and van den Bogert, A. J. and Hulliger, M. and Zernicke, R. F.},
month = jul,
year = {1998},
pmid = {9644290},
keywords = {Computer Simulation, Humans, Locomotion, Models, Biological, Muscle, Skeletal},
pages = {206--220},
}
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