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Phys Ther. 1990 Sep;70(9):537-41.

Patterns of hip rotation range of motion: a comparison between healthy subjects and patients with low back pain.

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Department of Physical Therapy, University of Texas Southwestern Medical Center, Dallas 75235-8876.


The purpose of this study was to characterize and classify the prevalence of passive hip rotation range-of-motion (ROM) asymmetry in healthy subjects (n = 100) and in patients with low back dysfunction (n = 50). We categorized the subjects of both groups as having one of three patterns of hip rotation. Pattern IA existed when all ROM measurements were equal (within 10 degrees). Pattern IB existed when total medial and lateral rotation were equal, but one or more of the individual measurements were unequal. Pattern II existed when total medial rotation ROM was greater than total lateral rotation ROM. Those subjects with total lateral rotation ROM greater than total medial rotation ROM demonstrated pattern III. The distribution of subjects among the ROM pattern categories was significantly different in the patient and healthy subject groups. The frequency of occurrence of pattern III was greater in the patient group than in the healthy subject group. These results suggest an association between hip rotation ROM imbalance and the presence of low back pain.

[Indexed for MEDLINE]

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