DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/TOH.2013.64
Fabien Vérité , Institut des Systèmes Intelligents et de Robotique, CNRS, Université Pierre et Marie Curie, Paris
Wael Bachta , Institut des Systèmes Intelligents et de Robotique, CNRS, Université Pierre et Marie Curie, Paris
Guillaume Morel , Institut des Systèmes Intelligents et de Robotique, CNRS, Université Pierre et Marie Curie, Paris
Postural control rehabilitation may benefit from the use of smart devices providing biofeedback. This approach consists in increasing the patients perception of their postural state. Namely, postural state is monitored and fed back in real time to the patients through one or more sensory channels. This allows implementing rehabilitation exercises where the patients control their posture with the help of additional sensory inputs. In this paper, a closed loop control of the Center-Of-Pressure (CoP) based on kinesthetic feedback is proposed as a new form of biofeedback. The motion of a one Degree of Freedom (DoF) translational device, lightly touched by the patient's forefinger, is servoed to the patient's CoP position extracted from the measurements of a force plate on which he/she stands. As a result, the patient's CoP can be controllably displaced. A first set of experiments is used to prove the feasibility of this closed-loop control under ideal conditions favoring the perception of the kinesthetic feedback, while the subject is totally unaware of the context. A second set of experiments is then proposed to evaluate the robustness of this approach under experimental conditions that are more realistic with regards to the clinical context of a rehabilitation program involving biofeedback-based exercises.
Rehabilitation, Kinesthetic devices
F. Vérité, W. Bachta and G. Morel, "Closed Loop Kinesthetic Feedback for Postural Control Rehabilitation," in IEEE Transactions on Haptics.