 Frailty is a highly prevalent condition, reaching approximately 7 to 30 of older adults aged from 65 up to 80 years 2. Although exercises seemed to be beneficial for the frail elders, there is still insufficient evidence to indicate the appropriate modality, frequency and intensity of physical exercises that were able to improve physical functioning in this population 9. The virtual reality VR using interactive games exergames have generated broad scientific and clinical interest in recent years10. Studies indicate that older adults can benefit from training with exergames in improving mobility 12, 13, lower limb strength 14, cognition, particularly executive function 13, body balance 10, 15-18, reaction time 12 and may contribute indirectly to prevent falls 10, 19, 20. But, there is still insufficient evidence to suggest that the use of exergames are superior even to other types of intervention 21-23 or in combination with conventional physiotherapy 24 The purpose of this study is to investigate the effectiveness of adding exercises using interactive videogames exergames in improving physical functioning on frail and pre frail older people when compared to conventional physiotherapy. A parallel randomized clinical with a 6 month follow-up period will be conducted with 82 frail community dwelling older adults. Participants randomized to the Experimental Group will be submitted to 30 minutes of conventional physiotherapy and 20 minutes of therapy using interactive games Xbox 360 Video Game and Entertainment Microsoft System with Kinect sensor. 