Slump Test

 Slump Test

What is Slump Test?

  • Slump Test is used for detecting disc bulging or herniation.

How it's Performed?

  • Sitting with the back straight, the patient is encouraged to slump into lumbar and thoracic flexion while looking straight ahead.
  • Then the patient fully flexes the neck and extends one knee.
  • Last, the patient dorsiflexes the ipsilateral foot.

What does a positive Slump Test mean?

  • The test can cause impingement or irritation of the dura and/ or nerve roots, with pain radiating down into the areas supplied by the sciatic nerve.
  • Slump Test is Positive if reproduction of familiar radicular pain occurs.

Sensitivity & Specificity

  • Sensitivity: 84 %
  • Specificity: 83 %


  • During the course of the test, pains may occur that must be defined in the differential diagnosis.
  • These include:
    • Facet joint arthritis.
    • Tight hamstring muscles.
    • Limited knee and ankle mobility.


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