Relation between subjective and objective scores on the active straight leg raising test.

Design: Cross sectional.

Objective: To fill a gap in the validation of the active straight leg raising (ASLR) test concerning the relation between a patient's subjective score on the ASLR test and the objective measured force.

Summary Of Background Data: The ASLR test is used to classify patients presenting with pain in the low back and/or pelvic girdle.