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KMID : 0613820100200040543
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Journal of Life Science
2010 Volume.20 No. 4 p.543 ~ p.548
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Lower Limbs Muscle Comparative Research for Verification Effect of Rehabilitation Training Program of Total Hip Arthroplasty
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Jin Young-Wan
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Abstract
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The purpose of this study was to examine the differences in kinetics between 6 months of rehabilitation training and 12 months of rehabilitation training after total hip arthroplasty. 10 unilateral THA participants performed kinetic tests. Three dimensional kinematics and hip flexors and abductors electromyography (EMG) were collected during each trial. T-test was used for statistical analysis (p＜0.05). There was no significant difference in EMG data between the two groups, but the mean comparison EMG data was higher in the 12 months rehabilitation training group than the 6 months rehabilitation training group. The moment value was found with motion-dependent interaction analyzing method which was used by Feltner and Dapena. There was no significant difference between moment values of the two groups. There was no significant difference between ground reaction forces of the two groups; however, there were some differences shown in Fz (vertical reaction force) between the two groups (892±104 N, 820±87 N). The first peak impact force was about 9% lower in the 12 months group compared to the 6 months group. The second peak active force was nearly equal between the two groups. More research is necessary to determine exactly what constitutes optimal rehabilitation training biomechanics for patients with total hip arthroplasty.
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KEYWORD
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Rehabilitation training program, 3D-kinematics and kinetics, total hip athroplasty, moment, GRF
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