Title :
Muscle mechanics and sensory feedback control
Author_Institution :
Neurosurgery, Thomas Jefferson Univ., Philadelphia, PA, USA
Abstract :
It is shown that the intrinsic mechanical properties of muscles are important components for sensory feedback control. The results are obtained through a computer simulation of small perturbation responses of a three joints musculoskeletal control system using either a hypothetical muscle model having constant force-length and force-velocity relations or a muscle model having complex, nonlinear properties as known today. The optimal feedback control matrix is also generated for both cases. It is shown that while it is possible to obtain comparable closed-loop responses, the feedback gains for the simple linear muscle model are much larger than that for the complex nonlinear muscle model
Keywords :
biocontrol; biology computing; biomechanics; closed loop systems; feedback; muscle; neurophysiology; optimal control; physiological models; closed-loop responses; complex nonlinear muscle model; computer simulation; constant force-length relations; constant force-velocity relations; feedback gains; intrinsic mechanical properties; linear muscle model; low gain feedback controller; muscle model; optimal feedback control matrix; sensory feedback control; small perturbation responses; stable actuators; standing posture; three joints musculoskeletal control system; Elasticity; Feedback control; Force control; Force feedback; Integrated circuit modeling; Joints; Mechanical factors; Muscles; Optimal control; Viscosity;
Conference_Titel :
Bioengineering Conference, 1993., Proceedings of the 1993 IEEE Nineteenth Annual Northeast
Conference_Location :
Newark, NJ
Print_ISBN :
0-7803-0925-1
DOI :
10.1109/NEBC.1993.404417
