[Effects of virtual reality on balance and gait in stroke: a systematic review and meta-analysis].

INTRODUCTION Stroke is the leading cause of disability in adulthood. Recently the improvement of virtual reality technologies has been used in the rehabilitation of stroke patients. AIM To review published research literature on the effects of the virtual reality interventions vs conventional therapy on balance and gait in stroke. PATIENTS AND METHODS A systematic and a meta-analysis of randomized controlled trials was performed during March 2018 in the databases: PubMed, PEDro, Web of Science, Scopus, Cochrane Library and Medline at EBSCO. The selection criteria were: randomized controlled trials published in English or Spanish during the past ten years. The PEDro scale evaluated the quality of the methods used in the studies. A total of 14 clinical trials were included in the systemic review, of which 10 contributed information to the meta-analysis. RESULTS Favourable results were found on balance (Berg Balance Scale: standardized mean difference, SMD = -1.89; 95% CI: -2.72 to -1.07; Timed Up and Go, SMD: 1.42; 95% CI: 1.03-1.81), and gait (GaitRite platform: cadence, SMD: -1.51, 95% CI: -2.05 to -0.97; step length, SMD: -1.63, 95% CI: -2.18 to -1.08; stride length, SMD: -1.63, 95% CI: -2.18 to -1.08; velocity, SMD: -1.58, 95% CI: -2.97 to -0.18). CONCLUSION The results show the potential benefit of virtual reality interventions to recover balance and gait after stroke.