A novel control model for elucidating human postural balance

In this paper, the authors devised a control system to be integrated as a new framework for examining human postural control. The control model is partially based on the proven mathematical concept of systems with impulse effect. The authors contend the use of impulse effect along with a learning procedure, a linear quadratic regulator, and state estimation as a control system provides insight on the strategies used by the human body´s lower extremities. The model simulates the control of upright balance following an external perturbation and produces stable responses, which reasonably matches experimental data.