Fig. 4From: Walking in fully immersive virtual environments: an evaluation of potential adverse effects in older adults and individuals with Parkinson’s diseaseCoP sway area. Pre- (black bar) and post-test (dark gray bar) during eyes open (EO) and pre- (light gray bar) and post-test (white bar) during eyes closed (EC). Vertical bars represent standard deviations. Asterisks represent statistical significance (*: p < 0.05)Back to article page