Visual feedback after stroke with the balance performance monitor: Two single-case studies

Research over the past decade had indicated the effectiveness of visual feedback as a method of training stance symmetry and weight-transference after stroke. This study was carried out to assess the efficacy of the Balance Performance Monitor (BPM) in providing feedback. A reversal ABAB single-case experimental design was used with two patients at different stages poststroke. Assessments of motor function and independence in functional tasks (ADL) were made, as well as the measures of stance symmetry. The results indicated large improvements in symmetry, with both patients achieving levels within the normal range after five treatments. Functional skills also improved. Although the limitations of single-case studies are recognized, such dramatic improvements suggest that the BPM is an effective method of providing feedback and that this approach to treatment enhances the effects of physiotherapy and could be used more frequently after stroke.