Inter-rater reliability of the Active Straight-Leg Raise and One-Leg Standing tests in non-pregnant women
Evan H. Kwong, Noorshina Virani, Magali Robert, Kate Gerry, Anita Harding, M. Sarah Rose, Sean P. Dukelow, Pamela M. Barton
Division of Physical Medicine and Rehabilitation, Department of Clinical Neurosciences, University of Calgary, T2N 2T9 Calgary, Canada
Objective: To determine the inter-rater reliability of the Active Straight-Leg Raise and One-Leg Standing tests.
Design: Cross-sectional pilot study.
Subjects: Thirty-one women who were either not pregnant or at least 9 months post-partum.
Methods: Subjects completed a questionnaire and standardized pain and disability assessments. The Active Straight-Leg Raise and One-Leg Standing tests were assessed by 3 independent, blinded examiners. Inter-rater reliability was determined, and relationships with assessments were explored.
Results: For the Active Straight-Leg Raise test, the kappa coefficient was 0.87, sensitivity 71%, and specificity 91%. Relationships with various pain and disability assessments were demonstrated, including the Functional Pelvic Pain Scale (r = 0.77) and Roland-Morris Disability Questionnaire (r = 0.70). For the One-Leg Standing test, kappa coefficients were –0.02 and 0.14 for the left and right sides, respectively, and thus no further analyses were performed.
Conclusion: In women with a spectrum of low-back and pelvic pain, the Active Straight-Leg Raise test had good inter-rater reliability, whereas the One-Leg Standing test did not. Further studies are required regarding the validity of the Active Straight-Leg Raise test.
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