Fig. 7From: Advantages of using 3D virtual reality based training in persons with Parkinson’s disease: a parallel studyMedian values, 25th and 75th percentile and 1.5 times whiskers of the BBT (upper) and UPDRS III for lower limb (lower) data for LCD and 3D groups before and after the virtual environment sessions. Both clinical tests demonstrated improvement in terms of mean values. The effect sizes are presented by the Cohen’s U3 indexBack to article page