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KMID : 1155620100050020009
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Journal of Korea CHUNA Manual Medicine for Spine & Nerves
2010 Volume.5 No. 2 p.9 ~ p.16
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Comparison of Hip Internal Rotation Angle in Chronic Low Back Pain Patients According to the Gender
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Lee Jae-Young
Han Sang-Yup
Nam Hang-Woo
Jeong Byul
Lee Cha-Ro
Han Sang-Wook
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Abstract
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Objectives: This study is planned to classify different biomechanics of men and women, from the comparison of normal range and hip internal rotation angle in chronic low back pain patients.
Methods: We measured the hip internal rotation angle of the 30 men and 30 women patients with low back pain that has been over 3 months in BuCheon Jaseng Hospital of Oriental medicine. We set 35-45 degrees as normal range, and found the patients with exceeding normal range, the patients with normal range, and the patients with under normal range.
Results: Men appeared to have less hip internal rotation angle than women. Especially, the men’s left hip internal rotation angle was less than normal range. On the other hand, women’s right hip internal rotation angle was often larger than normal range which was stastically significant.
Conclusions: Contraction of hip external rotation muscle including gluteus maxius muscle and piriformis muscle in men, or relaxation of posterior gluteus medius, gluteus maxius and piriformis muscle with contraction of tensor fasciae latae, a part of hip internal rotation muscle, in women seems to be the basis for biomechanics of chronic low back pain.
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KEYWORD
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hip internal rotation, chronic low back pain
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