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KMID : 1002720140120010039
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Journal of Korean Proprioceptive Neuromuscular Facilitation Association
2014 Volume.12 No. 1 p.39 ~ p.43
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A Comparison of Lateral Abdominal Muscle Activation during Maximum Expiration in Chronic Low Back Pain Patients and Healthy Asymptomatic Subjects
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Goo Bong-Oh
Kim Kang-Hoon
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Abstract
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Purpose: This study was to examine lateral abdominal muscle activation during maximum expiration exercise between healthy and chronic low back pain(CLBP) patients.
Methods: The subjects were 16 CLBP patients and 16 healthy people between the ages of 22 and 53. The thickness of the abdominal muscles was measured using ultrasonography(LOGIQ Book XP, GE, USA). We instructed the subjects how to perform the exercises and measured changes in thickness of the transversus abdominis(TrA) and internal oblique(IO) muscles during the maximum expiration. The main outcome variables were the ratios of the TrA and IO thickness during the exercise versus in the relaxed position (TrA and IO activation ratios).
Results: There were significant differences between CLBP patients and healthy subjects for TrA in the relaxed position. However there was no difference in the ratio of change in the muscle activity(TrA, IO).
Conclusion: These findings, CLBP patients exhibited atrophy of the TrA muscle, but voluntary TrA muscle activation was similar to that of the normal subjects. Therefore, this exercise could be used during core strengthening in CLBP patients.
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KEYWORD
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Chronic low back pain, Maximum expiration, Abdominal muscle
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