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KMID : 1020120080060010001
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Journal of the Korean Academy of Clinical Electrophysiology
2008 Volume.6 No. 1 p.1 ~ p.15
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The Study of Behavior and Histological Change on Treadmill Exercise Intenstiy after Spinal Cord Injury in Rats
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Kim Young-Eok
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Abstract
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This study was designed to investigate the effect of treadmill exercise of low-intensity and high-intensity on the functional recovery and histological change in spinal cord injury rats. Sprague-Dawley rats were experimented(n=15) for this research. Spinal cord injury was induced by the NYU drop impacter device after laminectomy. After operation, rats were test at modified Tarlov scale at 3 days, and divided into the control group(n=5), experimental group I(n=5, low-intensity treadmill) and experimental group II(n=5, high-intensity treadmill). The rats were disciplined from 7 day through 21 day. Functional recovery was evaluated by the BBB scales and the Grid Walk test for the progressive locomotor recovery at 3, 7, 14, 21 days. Histopathological studies for the muscle in order to observation the change of damage and size of the organized surface which is visible visually it executed hematoxylin & eosin stain. According to the result of 4 weeks of treadmill exercise, group II showed improvement than group I of motor behavior after spinal cord injury.
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KEYWORD
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spinal cord injury, treadmill exercise, locomotor behavioral test, histological change
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