RESUMO
Objective:To evaluate the effect of virtual reality (VR) on comprehensive balance for patients with Parkinson's disease (PD). Methods:The databases of Web of Science, PubMed, Cochrane Library, EMBASE, Scopus, VIP, Wanfang Data and CNKI were retrieved to collect randomized controlled trials about VR intervention for PD patients, from establishment to November, 2020. Two researchers independently screened the literature, extracted the data and evaluated the quality of the literature, and then used Review Manager 5.3 software for meta-analysis. Results:A total of 24 documents were included. Compared with the control group, VR intervention might improve the static balance (SMD = -0.49, 95%CI -0.64 to -0.35, P < 0.001) of PD patients. Simple VR intervention might improve the Berg Balance Scale score (SMD = 0.83, 95%CI 0.43 to 1.23, P < 0.001) for PD patients, while combination of VR intervention might improve the Berg Balance Scale score (SMD = 0.75, 95%CI 0.53 to 0.96, P < 0.001) and Timed 'Up and Go' Test time (SMD = -0.87, 95%CI -1.52 to -0.22, P = 0.008) for PD patients; however, simple VR intervention might do little in improving Timed 'Up and Go' Test time (SMD = -0.36, 95%CI -0.74 to 0.03, P = 0.07). Conclusions:VR can improve the comprehensive balance for PD patients, especially combine with conventional or balance training.