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KMID : 1035420210090010101
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Journal of The Korean Society of Integrative Medicine
2021 Volume.9 No. 1 p.101 ~ p.108
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Effects of Resistance Exercise with Pressure Biofeedback Unit on the Strength and Balance Ability in Subject with Total Knee Replacement Patients
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Park Han-Kyu
Park Jin
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Abstract
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Purpose : The purpose of this study was to verify the effect of selective muscle strengthening of the knee joint extensor muscles using a pressure biofeedback unit to improve knee extensor strength and balance ability of total knee replacement patients. Through this, we tried to provide clinical information.
Methods : In this study, 12 patients with total knee replacement patients were recruited from a rehabilitation hospital. They were divided into two groups: a feedback group (n=6) and a control group (n=6). They all received 30 minutes of continuous passive motion (CPM) and leg strengthening exercise for 15 minutes five times a week for two weeks. The knee extensor strength and balance ability were measured before and after exercise. Knee extensor strength was measured by Biodex system 3 and balance ability was measured by Balancia software. Paired t test was performed to verify the difference between before and after intervention within the group, and analysis of covariance was used to verify the differences between the two groups.
Results : After the training periods, the feedback group showed a significant improvement in knee extensor muscle strength, velocity average, area 95 % center of pressure (COP), and five times sit to stand test (p<.05).
Conclusion : The results of this study showed that leg strengthening with pressure biofeedback unit in the sitting position was more effective in improving knee extensor muscle strength and balance ability than the leg strengthening exercise without pressure biofeedback unit. Therefore, in order to strengthen the knee extensor muscle and improve the balance ability of total knee replacement patients, it is necessary to consider providing pressure biofeedback unit during leg strengthening exercise.
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KEYWORD
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balance, pressure biofeedback unit, knee strength, total knee replacement
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