A simple model of human balance postural control

When human gravity center was out of equilibrium owing to disturbance, there would be a dynamic process to equilibrium state. This process comes with neural system and motion system. In order to simulate this process well and truly, this paper provides a candidate method based on SimMechanics, where under the premise of local linearization of motion system and PID controller abstracted for neural system, human body dynamics including body, motion system and central nervous system is modeled. On the other hand, the model parameters were adjustable according to the actual gender, weight and height. Through the comparison with the real gravity data, it was demonstrated that the presented simulating method is feasibility and rationality. At the same time, through the simulation, we could provide practical data support to research on algorithm development for the evaluation of human balance capability.