Lee Silverman Voice Treatment-BIG Group Therapy Effects on Motor Function, Occupational Performance, Activities of Daily Living, Depression, and Quality of Life in Patients With Stroke

Background:This study investigated the additional effects of Lee Silverman Voice Treatment-BIG (LSVT-BIG) group therapy when combined with conventional rehabilitation on motor function in patients with stroke.Occupational performance, activities of daily living, depression, and quality of life were secondary outcomes. Material/Methods:Sixteen patients were randomly assigned to an experimental (n = 8) or control group (n = 8).Both groups received conventional occupational and physical therapy; the experimental group additionally received LSVT-BIG group therapy (60 minutes/session, 4 consecutive days/week for 4 weeks, for 16 total sessions).Assessments included the Modified Ashworth Scale (MAS), Manual Function Test (MFT), Korean version of the Fugl-Meyer Assessment (K-FMA), Functional Reach Test (FRT), 10-meter walk test (10MWT), Canadian Occupational Performance Measure (COPM), Korean-Modified Barthel Index (K-MBI), Beck Depression Inventory (BDI), and Stroke-Specific Quality of Life (SS-QOL).Between-group differences in change scores were analyzed using the Mann-Whitney U test. Results:Within-group analysis showed significant improvements in selected MAS subdomains, MFT, K-FMA, FRT, 10MWT, COPM, BDI, and SS-QOL; K-MBI did not improve significantly.Between-group comparisons showed significant differences in selected MAS, MFT, and K-FMA domains, 10MWT, COPM, and SS-QOL, but not FRT, K-MBI, or BDI.Analyses were exploratory and not adjusted for multiple comparisons. Conclusions:The addition of group-delivered LSVT-BIG to conventional rehabilitation was associated with preliminary, domain-specific differences in selected measures of motor function, occupational performance, and quality of life in hospitalized patients with stroke.However, significant differences were not observed across all assessed outcomes.Findings should be interpreted cautiously given the small sample size and exploratory analyses.Larger studies with clearly prioritized primary outcomes are needed to confirm these findings.