Active Straight Leg Raise (ASLR)

The active straight leg raise test (ASLR) is a loading test which is used to assess pain provocation and the ability to load the pelvis through the limb. It is performed in lying and the patient is instructed to lift the leg 20cm off the bed. This blog aims to outline the standard test, the modulations of the test, and the normal/abnormal responses seen. 

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