title: Reproducibility of a battery of commonly used clinical tests to evaluate lumbopelvic motor control.
abstract: OBJECTIVE
  To determine reproducibility of a battery of clinical tests for evaluating lumbopelvic motor control (LMC).
  
  
  METHODS
  Test-retest design.
  
  
  METHODS
  Fifty healthy subjects.
  
  
  METHODS
  Two raters independently examined performance on 12 clinical tests for evaluating LMC. All tests were scored on a seven-point scale, based on qualitative and quantitative performance. Subjects were measured twice, with a two week interval between examinations. Intra- and inter-rater reproducibility of each test were determined using intraclass correlation coefficients (ICCs), standard error of measurement, smallest detectable change (SDC) and limits of agreement.
  
  
  RESULTS
  Reliability of the tests ranged from poor to excellent. Intra-rater ICCs ranged from 0.00 to 0.82, whereas inter-rater ICCs varied from 0.00 to 0.96. SDC values were smallest for supine leg raising, bent knee fall out, prone bridge and unilateral prone bridge (<2 points).
  
  
  CONCLUSIONS
  This study shows limited reproducibility of a battery of 12 clinical tests for the evaluation of LMC in a healthy population. Supine leg raising, bent knee fall out, prone bridge, and unilateral prone bridge showed the smallest measurement errors. The other 8 tests were found to have large measurement errors. Based on these results, dichotomization of the rating method might be considered in order to improve reproducibility values.
authors.affiliation: Papendal Sports Medical Center, Papendallaan 7, 6816 VD, Arnhem, The Netherlands. Electronic address: b.habets@smcp.nl.
authors.forename: Bas
authors.initials: B
authors.lastname: Habets
authors.affiliation: Papendal Sports Medical Center, Papendallaan 7, 6816 VD, Arnhem, The Netherlands; HAN University of Applied Sciences, Institute Health Studies, Kapittelweg 33, 6525 EN, Nijmegen, The Netherlands. Electronic address: r.vancingel@smcp.nl.
authors.forename: Robert E H
authors.initials: RE
authors.lastname: van Cingel
authors.affiliation: Department of Health Sciences, VU University & EMGO Institute for Health and Care Research, Van der Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands; Department of Epidemiology and Biostatistics, VU University Medical Centre, Van der Boechorststraat 7, 1081 BT, Amsterdam, The Netherlands. Electronic address: r.ostelo@vu.nl.
authors.forename: Raymond W J G
authors.initials: RW
authors.lastname: Ostelo
mesh_terms: D000328:Adult; D005080:Exercise Test; D005260:Female; D064368:Healthy Volunteers; D006801:Humans; D008161:Lumbosacral Region / Q000502:physiology*; D008297:Male; D009068:Movement / Q000502:physiology*; D010388:Pelvis / Q000502:physiology*; D015203:Reproducibility of Results
keywords: Lumbopelvic; Motor control; Reliability; Reproducibility