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Effect of mirror use on lower extremity muscle strength of patients with chronic stroke
Kim M-K, Choe Y-W, Shin Y-J, Peng C, Choi E-H
Journal of Physical Therapy Science 2018 Feb;30(2):213-215
clinical trial
5/10 [Eligibility criteria: No; Random allocation: Yes; Concealed allocation: No; 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: This study examines the effect on muscle strength of lower extremity muscle strength exercise while using a mirror on the non-paretic side in patients with chronic stroke. SUBJECTS AND METHODS: Subjects were randomly assigned to a non-mirror lower extremity exercise group (n = 10), a mirror lower extremity exercise group (n = 10), or a mirror lower extremity muscle strength exercise group (n = 10). Subjects were asked to do the exercise assigned to their group (5 sets 30 times a day, 5 times weekly for 4 weeks) with general physical therapy in the hospital. Muscle strength in the knee extensor and flexor of paretic and non-paretic side were measured using electrical muscle testing device before and after the intervention. RESULTS: Muscle strength significantly increased within each group after intervention. No significant differences were found among the three groups. CONLCUSION: This study showed that the lower extremity muscle strength exercise of the non-paretic side using a mirror has a positive effect on muscle strength in patient with chronic stroke.

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