Slump Test: Assessing Neural Tension

The Slump Test is a progressive neurodynamic test used to place tension on the neuromeningeal tract. It is highly effective for detecting neural tension, disc herniations, or altered neurodynamics.

1. Purpose

The primary purpose of the Slump Test is to **assess the mechanosensitivity** of the neuromeningeal tract (the spinal cord, meninges, and nerve roots). It is a progressive neurodynamic test used to detect neural tension or disc herniation.

2. How to Perform

The test is performed in sequential steps. Stop if symptoms are reproduced.

1. The patient sits on the edge of the table with hands behind their back.
2. The patient slumps forward (thoracic and lumbar flexion) while keeping the head upright.
3. The patient flexes their neck (chin to chest). The examiner applies gentle overpressure to maintain this position.
4. The patient actively extends one knee.
5. The patient dorsiflexes the ankle of the extended leg.
6. Differentiation: If pain is felt, the patient is asked to extend their neck (look up) while keeping the leg extended.

3. Positive & Negative Sign

Positive Sign (Test is POSITIVE):
A positive test is indicated by:

• Reproduction of the patient's pathological symptoms (e.g., radiating pain, numbness, or shooting pain).
• Symptoms are increased by sensitizing maneuvers (knee extension/dorsiflexion).
• Crucially, symptoms are DECREASED by releasing the neck flexion. This confirms the pain is neural, not muscular.

Negative Sign (Test is NEGATIVE):
A negative test is when there is no reproduction of symptoms, or if the symptoms are not altered by neck movement (which suggests a muscular stretch/hamstring tightness rather than neural tension).