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KMID : 0357220130250020081
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Journal of Korean Society Physical Therapy
2013 Volume.25 No. 2 p.81 ~ p.87
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Effects of EMG-biofeedback Training on Total Knee Replacement Patients’ Lower Extremity Muscle Activity and Balance
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Park Seung-Kyu
Kim Je-Ho
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Abstract
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Purpose: The purpose of the current study was to examine the effects of electromyography (EMG)-biofeedback training on lower extremity muscle activity and balance of patients with total knee replacement (TKR).
Methods: Subjects were randomly allocated to two groups: experimental and control group. Subjects in the experimental group (n=10) were provided with quadriceps setting exercise by EMG-biofeedback (QSE+BF) and those in the control group were provided with QSE. Subjects in both groups were provided with the respective training programs for 20 minutes per session, five times per week, for a period of six weeks. To test significance, data analysis was performed using repeated-ANOVAs.
Results: Statistically significant differences in muscle activity of the rectus femoris muscle and the vastus lateralis, and dynamic balance ability were observed in the experimental group, compared with the control group. In comparison of the muscle activity of the rectus femoris muscle and the vastus lateralis, and dynamic balance ability between different training periods within the groups, both groups showed statistically significant differences.
Conclusion: EMG-biofeedback training is effective in improving lower extremity muscle activity and balance ability of patients with TKR, and should be effective in patients with other diseases.
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KEYWORD
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Total knee replacement, Electromyographic biofeedback, Muscle activity, Balance
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