This paper presents analysis of a one degree of freedom human postural control model. The central nervous system is captured in the model as an intermittent control law. Parametric and stability analysis of this single degree-of-freedom model are presented. The L2 Norm of the response is used as a measure of stability. This study shows that joint stiffness and associated time delay parameter are the most sensitive towards the response dynamics. In addition, a comparison of parametric linear stability boundary with the L2 Norm estimates is presented.

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