Straight leg raise

Body movement and diagnostic test

The straight leg raise is a test that can be performed during a physical examination, with the leg being lifted actively by the patient or passively by the clinician. If the straight leg raise is done actively by the patient, it is a test of functional leg strength, particularly the rectus femoris element of the quadriceps. If carried out passively, it is used to determine whether a patient with low back pain has an underlying nerve root sensitivity, often located at L5. The rest of this article relates to the passive version of the test.

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