TAILIEUCHUNG - Báo cáo y học: " The relationship between hip abductor muscle strength and iliotibial band tightness in individuals with low back pain"

Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: The relationship between hip abductor muscle strength and iliotibial band tightness in individuals with low back pain. | Arab and Nourbakhsh Chiropractic Osteopathy 2010 18 1 http content 18 1 1 CHIROPRACTIC OSTEOPATHY RESEARCH Open Access The relationship between hip abductor muscle strength and iliotibial band tightness in individuals with low back pain Amir M Arab1 Mohammad R Nourbakhsh2 Abstract Background Shortening of the iliotibial band ITB has been considered to be associated with low back pain LBP . It is theorized that ITB tightness in individuals with LBP is a compensatory mechanism following hip abductor muscle weakness. However no study has clinically examined this theory. The purpose of this study was to investigate the muscle imbalance of hip abductor muscle weakness and ITB tightness in subjects with LBP. Methods A total of 300 subjects with and without LBP between the ages of 20 and 60 participated in this crosssectional study. Subjects were categorized in three groups LBP with ITB tightness n 100 LBP without ITB tightness n 100 and no LBP n 100 . Hip abductor muscle strength was measured in all subjects. Results Analysis of Covariance ANCOVA with the body mass index BMI as the covariate revealed significant difference in hip abductor strength between three groups P . Post hoc analysis showed no significant difference in hip abductor muscle strength between the LBP subjects with and without ITB tightness P . However subjects with no LBP had significantly stronger hip abductor muscle strength compared to subjects with LBP with ITB tightness P and those with LBP without ITB tightness P . Conclusion The relationship between ITB tightness and hip abductor weakness in patients with LBP is not supported as assumed in theory. More clinical studies are needed to assess the theory of muscle imbalance of hip abductor weakness and ITB tightness in LBP. Background Shortening of the iliotibial band ITB has been considered to be associated with low back pain LBP 1-4 . Stretching of the ITB is frequently recommended in LBP treatment .

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