“…The characteristics of included studies are shown in Table 2 : among the 19 studies, 8 were randomized clinical trials (RCTs), 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 2 were control trials (CTs; quasi-experimental pre–post-test design without randomization), 34 , 35 5 were 1-group pre–post-test designed studies (pre-experimental design with pre–post-test design among same participants), 36 , 37 , 38 , 39 , 40 and 4 were case studies (pre-experimental design with pre–post-test on 1 to 2 subjects only). 41 , 42 , 43 , 44 The USA was the primary location for AVG-based rehabilitation studies, 31 , 36 , 37 , 39 , 40 , 42 , 43 , 44 with 4 studies conducted in Canada, 26 , 27 , 28 , 34 2 in Brazil 29 , 35 and Australia, 32 , 41 and 1 in Singapore, 38 Turkey, 30 and Taiwan, China, 33 respectively. A majority ( n = 17; 89%) of the articles were published after 2010, and the oldest publication was in 2008, indicating that research on AVGs and rehabilitation is a young but expanding scientific field.…”