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Phys Ther ; 93(5): 649-60, 2013 May.
Article in English | MEDLINE | ID: mdl-23329559

ABSTRACT

BACKGROUND: Gold standards of data analysis for single-case research do not currently exist. OBJECTIVE: The purpose of this study was to determine whether a combined statistical analysis method is more effective in assessing movement training effects in a patient with cerebellar stroke. DESIGN: A crossover single-case research design was conducted. METHODS: The patient was a 69-year-old man with a chronic cerebellar infarct who received two 5-week phases of finger tracking training at different movement rates. Changes were measured with the Box and Block Test, the Jebsen-Taylor test, the finger extension force test, and the corticospinal excitability test. Both visual analysis and statistical tests (including split-middle line method, t test, confidence interval, and effect size) were used to assess potential intervention effects. RESULTS: The results of the t tests were highly consistent with the confidence interval tests, but less consistent with the split-middle line method. Most results produced medium to large effect sizes. LIMITATIONS: The possibility of an incomplete washout effect was a confounding factor in the current analyses. CONCLUSIONS: The combined statistical analysis method may assist researchers in assessing intervention effects in single-case stroke rehabilitation studies.


Subject(s)
Brain Infarction/rehabilitation , Cerebellar Diseases/rehabilitation , Exercise Movement Techniques/methods , Infarction/rehabilitation , Palatine Tonsil/blood supply , Statistics as Topic/methods , Stroke Rehabilitation , Aged , Brain Infarction/physiopathology , Cerebellar Diseases/physiopathology , Electromyography , Humans , Male , Pyramidal Tracts/physiopathology , Research Design , Stroke/physiopathology
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