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A study of analysis of the brain wave with respected to action observation and motor imagery: a pilot randomized controlled trial
Kim J-H, Chung E-J, Lee B-H
Journal of Physical Therapy Science 2013 Jul;25(7):779-782
clinical trial
6/10 [Eligibility criteria: No; Random allocation: Yes; Concealed allocation: Yes; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

PURPOSE: The purpose of this study was to compare the effects of action observation training and motor imagery training on recovery from chronic stroke. SUBJECTS: Thirty patients (who were over six months post stroke) participated in this study and were randomly allocated to three groups. METHODS: The action observation training group practiced additional action observation training for five 30-minute sessions over a four-week period. The motor imagery training group practiced additional motor imagery training for five 30-minute sessions over a four-week period. Electroencephalogram were used to compare brain waves between the three groups. RESULTS: The action observation group showed significant changes in relative alpha power in Fp1 and Fp2 and relative beta power in Fp2 and C3. CONCLUSION: Action observation induces higher levels of cognitive activities than motor imagery and physical training. Action observation is expected to be more effective for stroke patients.

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