A novel approach to mental practice combined with task observation (motor imagery): A randomized controlled trial

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International Journal of Development Research

A novel approach to mental practice combined with task observation (motor imagery): A randomized controlled trial

Abstract: 

Background: Task specific training requires some level of function which is not possible in severely paretic upper limb of the post stroke patients. Mental practice and task observation seem to offer beneficial effect to the upper limb of the patients. However, this effect is not so clear probably due to reduced number of repetition of the tasks practiced. Aim: The aim of this study was to find out whether high repetition of mental practice combined with task observation can provide significant improvement in motor function in patients with severe hemiparesis following stroke. Methods: Twenty five subjects comprising of 18 males and 7 females were randomized into experimental (n=15) and control (n=10) groups. The experimental and control groups received mental practice and task observation and traditional therapy respectively, 3 sessions per day, 7 days per week for 6 weeks. The outcome was evaluated using WMFT and MAL at baseline, 4 weeks and 6 weeks post intervention. Statistical analysis was carried out using an independent sample t-test and one-way repeated measures ANOVA. Result: The result showed that there was a significant difference between the experimental and control group at baseline (p<0.05). However, at 4 weeks and 6 weeks, there was no significant difference between the experimental and control group (p>0.05) on both outcome measures. Conclusion: Mental practice combined with task observation is effective in the rehabilitation of severe paretic upper limb of stroke patients when performed several 100 times per day.

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