Abstract:Objective To investigate the effect of virtual reality(VR) interactive balance game training on balance function and fall risk in patients with hemiplegia after stroke.Methods Sixty-two stroke patients treated from January 2018 to January 2019 were randomly divided into the virtual reality game-based training group (VR group, n=31) and the conventional balance training group (control group, n=31).Rehabilitation treatment was performed in two groups for four weeks.Berg Balance Scale (BBS) was used to evaluate the overall balance ability of the patients.The static fall risk index (SFI),dynamic fall risk index (DFI) and limit of postural stability(LOS) were measured by Biodex balance test system.The patients were followed up 4 and 8 weeks after finishing rehabilitation,and the number of falls was recorded.Results There were no significant differences in the assessment scores before treatment between two groups ( P>0.05).After treatment,BBS and LOS scores increased compared with those before treatment in two groups ( P ＜0.05)and were statistically higher in VR group than those in control group( P ＜0.05);SFI and DFI scores decreased compared with those before treatment in both groups ( P ＜0.05)and were statistically lower in VR group than those in control group( P ＜0.05).There were significant differences in the interaction of above indicators at different time points and groups ( P<0.05).The average number of falls decreased compared with that before treatment in two groups ( P<0.05) and were significantly less in VR group than those in control group at the end of the trial and 4-,8- week after treatment ( P<0.05).In control group,the average number of falls increased at 8 weeks after treatment compared with that at the end of treatment ( P<0.05).ConclusionVirtual reality game-based training on balance can effectively promote the recovery of balance function and reduce the risk of fall in stroke patients.