During the performance of the Sacroiliac Joint Stress Test, where does the therapist apply a force?

The Sacroiliac Joint Stress Test is designed to assess for sacroiliac joint dysfunction by applying a specific force to evaluate the stability and integrity of the joint. In this test, the therapist applies a force that is both downward and lateral from the pelvis. This direction of force is essential because it creates a compressive load that mimics the stresses placed on the sacroiliac joint during functional activities, helping to provoke any pain associated with dysfunction or instability.

Applying the force downward reaches the sacroiliac joint effectively, while the lateral component helps target the joint effectively by applying stress in a manner similar to the forces encountered during movement, thus assessing the joint's reaction. This method is critical for eliciting possible symptoms that could indicate sacroiliac joint dysfunction and helps differentiate it from other sources of lumbar or pelvic pain.