Perturbation-Based Balance Exercise Using a Wearable Device to Improve Reactive Postural Control

Area of Science:

• Biomechanics
• Rehabilitation Engineering
• Gerontology

Background:

• Reactive postural control is crucial for maintaining balance and preventing falls.
• Traditional perturbation-based balance exercises require specialized equipment and supervision.
• There is a need for accessible and effective methods to improve reactive postural control.

Purpose of the Study:

• To investigate the immediate effects of unexpected perturbation-based balance exercises using a wearable balance exercise device (WBED) on reactive postural control.
• To assess the efficacy of WBED in improving balance function compared to a sham group.

Main Methods:

• Eighteen healthy adult males were divided into WBED and Sham groups.
• The WBED group performed exercises with unexpected mediolateral perturbations.
• The Sham group performed exercises without perturbations.
• Reactive balance was evaluated pre- and post-intervention using center of pressure (COP) measurements.

Main Results:

• The WBED group showed significant reductions in peak displacement (D) and peak velocity (V) of mediolateral COP (COPML).
• Significant decreases in anteroposterior COP (COPAP) displacement (D) and root mean square (RMS) were observed in the WBED group.
• These findings indicate immediate improvements in reactive postural control following WBED use.

Conclusions:

• Perturbation-based balance exercises using a WBED can effectively and immediately enhance reactive postural control.
• WBEDs represent a promising, accessible tool for fall prevention strategies.
• Further research may explore the long-term effects and broader applications of WBEDs in various populations.