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The reliability measurements of lateral scapular slide test at three different degrees of shoulder joint abduction
  1. Azadeh - Shadmehr, - (shadmehr{at}tums.ac.ir)
  1. Rehabilitation Faculty, Tehran Medical Sciences University, Iran, Islamic Republic of
    1. Hossein - Bagheri, - (hbagheri{at}sina.tums.ac.ir)
    1. Tehran Medical University, Faculty of Rehabilitation, Iran, Islamic Republic of
      1. Nouredin Nakhostin Ansari, - (nakhostin{at}sina.tums.ac.ir)
      1. Tehran Medical University, Faculty of Rehabilitation, Iran, Islamic Republic of
        1. Hadi - Sarafraz, - (sarafraz2005{at}yahoo.com)
        1. Tehran Medical University, Faculty of Rehabilitation, Iran, Islamic Republic of

          Abstract

          Background: Lateral scapular slide test (LSST) quantitatively measures the distance between thoracic spine (T7) and inferior angle of scapula.

          Objective: To measure intra rater reliability, inter rater reliability and diagnostic accuracy of LSST by using the caliper.

          Methods: Three measurements of each test position were obtained bilaterally. ICC (2,1), 95% confidence interval and 2SEMs were calculated for intra-rater and inter-rater reliability of the absolute scapular distance. Sensitivity, specificity, positive and negative likelihood ratios were determined.

          Results: Twenty-seven people with and thirty people without shoulder pain participated. The mean age and standard deviation (SD) for the participant was 47.7 years (SD= 11.6) and 33.5 years (SD= 11.7) respectively. The ICCs for intra-rater reliability were high. A range of poor to good ICCs found for inter-rater reliability. The 2SEMs ranged from 4.6 to 7.9 mm for intra-rater reliability and from 6.8 to 13.4 mm for inter-rater reliability for people with shoulder pain. Positive and negative likelihood ratios from 0.94 to 1.22 and 0.21 to 2.5 respectively were demonstrated.

          Conclusion: LSST did not show a consistent high reliability. The diagnostic accuracy of the LSST was low, which questions the clinical importance of the tests outcomes.

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