Controlling posture using a plantar pressure-based, tongue-placed tactile biofeedback system

Area of Science:

• Neuroscience
• Biomechanics
• Human-Computer Interaction

Background:

• Postural control is crucial for daily activities.
• Traditional balance training methods have limitations.
• Novel sensory feedback systems can potentially improve postural stability.

Purpose of the Study:

• To introduce and evaluate a new biofeedback system for enhancing human balance control.
• To assess the system's impact on postural stability during quiet standing.
• To investigate the central nervous system's ability to integrate artificial sensory information.

Main Methods:

• Development of an original biofeedback system using a tongue-placed tactile output device.
• Delivery of sensory information regarding foot sole pressure distribution.
• Experimental assessment involving ten healthy adults standing with eyes closed under no-biofeedback and biofeedback conditions.
• Measurement of Centre of Pressure (CoP) displacements using a force platform.

Main Results:

• Significantly reduced CoP displacements were observed in the biofeedback condition compared to the no-biofeedback condition.
• The biofeedback system demonstrated a positive effect on postural control.
• Participants showed improved stability when using the tactile biofeedback.

Conclusions:

• The developed tongue-placed tactile biofeedback system is effective in improving human balance control.
• The central nervous system can efficiently integrate artificial plantar-based tactile feedback for postural regulation.
• This technology holds potential for balance training and rehabilitation applications.