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We explored how changes in vision and perturbation frequency impacted upright postural control in healthy adults exposed to continuous multiaxial support-surface perturbation. Ten subjects were asked to maintain equilibrium in standing stance with eyes open (EO) and eyes closed (EC) during sinusoidal 3D rotations at 0.25 (L) and 0.50Hz (H). We measured upper-body kinematics – head, trunk, and pelvis...
The aim of the present study is the exploration of the compensation mechanisms in healthy adults elicited by superimposing a horizontal perturbation, through a rotation of the support base, during a whole body active rotation around the participant's own vertical body axis.Eight healthy participants stood on a rotating platform while executing 90° whole body rotations under three conditions: no concurrent...
Dynamic posturography apparatuses are important tools in the diagnosis and rehabilitation of the equilibrium control capabilities. The mechanical systems used in dynamic posturography consist in moving bases actuated by elastic elements or, more recently, by servo-motors. In this work, the accuracy of a robot for postural rehabilitation, named RotoBiT3D, controlled in impedance, was analyzed experimentally...
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