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KMID : 1211620150100010071
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Journal of the Korean Society of Physical Medicine
2015 Volume.10 No. 1 p.71 ~ p.82
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Comparison of Difference of the Gluteus Medius Muscle Fiber Thickness during maximum muscle contraction between Chronic Low Back Pain with Gluteus Medius Weakness and Healthy Subject
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Lee Sang-Wk
Kim Suhn-Yeop
Yang Jin-Mo
Park Seong-Doo
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Abstract
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PURPOSE: The aim of this study is to compare changes in the thickness of the gluteus medius muscle fiber between chronic low back pain(clbp) with gluteus medius weakness and healthy subject.
METHODS: Ultrasound imaging was used to measure in the thickness of each fiber of the gluteus medius muscle based on maximal muscle contraction during abduction motion of the hip joint in a healthy group (11 subjects) and a chronic CLBP group (21 subjects). An independent t-test was performed to analyze the difference of thickness in each fiber of the gluteus medius muscle and the rate of changes in the fibers in the two groups.
RESULTS: The fiber thickness changes in the gluteus medius muscle were significantly lower for the posterior fiber in the CLBP group compared to the healthy group (p<0.01). The changes in rate of difference of thickness the posterior part of the gluteus medius muscle was significantly lower in the CLBP group than in the healthy group (p<0.05).
CONCLUSION: The findings of this study CLBP patients with weakness of the gluteus medius muscle that lower for the posterior fiber’s difference of thickness and rate of change in the CLBP group compared to the healthy group. Indicate that rehabilitation of CLBP patients with weakness of the gluteus medius muscle should consider the functions of posterior fiber of the gluteus medius muscle.
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KEYWORD
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Chronic low back pain, Gluteus medius, Muscle thickness, Rate of change, Ultrasound imaging
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