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Supine to Long Sit Test

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Other Names

  • Supine Long Sitting Test


The supine to long sit test[1]


  • The patient is supine
  • The examiner fully flexes and then extends the legs
    • Examiner compares both medial malleoli to see if there is a difference in position
  • The patient then sits up while keeping legs extended
    • Examiner then compares both medial malleoli again to see if there is a change
  • Positive test:
    • Leg appears shorter when patient is seated than supine (posterior innominate)
    • Leg appears longer when the patient is seated than when supine (anterior innominate)



Sacroiliac Dysfunction

  • Levangie et al[2]
    • Sensitivity: 44%
    • Specificity: 64%

See Also




  1. Image courtesy of youtube.com, "Supine To Long Sit Test" from Physical Therapy Nation
  2. Levangie PK. Four clinical tests of sacroiliac joint dysfunction: the association of test results with innominate torsion among patients with and without low back pain. Phys Ther. 1999 Nov;79(11):1043-57. PubMed PMID: 10534797.
Created by:
John Kiel on 13 August 2019 00:31:15
Last edited:
25 May 2023 04:22:04