The purpose of biofeedback systems for postural control is to provide additional sensory information about body equilibrium to the brain. Marco Dozza from Bolonia University has been developing such a system for several recent years. The balance feedback device acts much like a carpenter's level in alerting the subject to how much they are leaning outside of a predetermined central "safe-zone." The device is connected to a pair of headphones and hooked to the subject's belt. When activated, subjects receive audio cues to let them know how their body is balancing.
It is such a wide field for such applications - for walking, training, dancing.
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