Biomechanical Constraints on Equilibrium Point Control of Multi- Joint Arm Postures

Modeling and simulation appear to reveal a plausible role of fusimotor command in controlling equilibrium point (EP) of the limb (Lan et al. 2005). In this study, we use a comprehensive sensorimotor model of the virtual arm (VA) (Song et al. 2006) to evaluate the impact of biomechanical properties on the EP control. The results help to understand the constraining effect of neuro-musculoskeletal properties of the peripheral plant on EP control in particular, and on motor control in general.