Fig. 4
From: A novel balance training system using multimodal biofeedback
Body sway of young healthy subjects in tandem Romberg stance. Participants performed tandem Romberg stance balance task under four biofeedback conditions: no feedback (F1), haptic biofeedback (F2), visual biofeedback (F3) and multimodal biofeedback (F4). *p value < 0.05