Control model of human posture strategy selection

A control model for human balance in the sagittal plane was used to evaluate a continuum of stabilization strategies between the ankle and hip strategies. The parameters for the model were based on experimental data. The resulting model estimates the gain on ankle and hip position needed to successfully stabilize the body. It was found that, to account for the postural responses seen experimentally, it is necessary to use sensory input to choose a specific motor tape or program, which may be constructed by superimposing two separate motor synergies in appropriate proportion. The heteronymous nature of the response selection indicates that local reflexes alone are insufficient to account for the behaviours