Abstract
[Purpose] This study aimed to investigate the effects of mirror neuron system-based self-observation training on lower limb muscle activity and dynamic balance in patients with chronic stroke. [Participants and Methods] Twenty patients with chronic stroke were randomly assigned to a self-observation training group (n=10) or a control group (n=10). Both groups followed a routine 30-minute exercise therapy regimen five days a week for four weeks. The self-observation training group additionally watched video clips of their balance and functional gait training and performed physical training twice over a 10-minute time span. Each self-observation training session was performed for 30 minutes, three times a week for four weeks. Muscle activity was evaluated using surface electromyography; dynamic balance was evaluated using timed up and go and 10-meterwalk tests. [Results] Within-group comparisons showed significant differences in muscular activities of the rectus femoris, biceps femoris, tibialis anterior, and gastrocnemius and dynamic balance. Comparing between groups, the muscle activity of the rectus femoris, biceps femoris, tibialis anterior, and gastrocnemius and dynamic balance were significantly different between experimental and control groups. [Conclusion] Self-observation training improved lower limb muscle activity and dynamic balance in patients with chronic stroke.
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