Slump test: The patient sits on the edge of the treatment bench with the legs supported, the hip in neutral position, hands behind the back and looking straight ahead. The patient is then encouraged to slump, allowing the thoracic and lumbar spines to collapse into flexion while still looking straight ahead. The examiner is applying overpressure to the shoulders with one arm. The next step is to fully flex the cervical spine (chin to chest). The examiner applies overpressure with the same arm to maintain the flexion of the whole spine. The examiner asks the patient to fully extend the knee and then he maximally dorsiflexes the patient’s foot with his other arm. It is important to ask for the reproduction of symptoms during the whole test. Repeat this procedure on the other leg and on both legs together.
In the research of Majlesi et al (2008), the Slump test was found to be more sensitive than the SLR in the patients with lumbar disc herniations. However, the SLR was found to be a slightly more specific test than the Slump test.