Which muscle is primarily tested with the Ober Test?

• A. Rectus femoris
• B. Tensor fasciae latae
• C. Gluteus maximus
• D. Iliopsoas

Answer: (B)

The Ober Test is a physical assessment maneuver specifically designed to evaluate the flexibility of the iliotibial band (IT band) and the tensor fasciae latae muscle. During this test, the patient lies on their side while the examiner lifts the upper leg and allows it to drop towards the table. If the leg remains elevated and does not drop, it indicates tightness in the tensor fasciae latae and possibly the IT band.

The tensor fasciae latae plays a crucial role in stabilizing the hip and controlling movements of the thigh. When tight, it can impact overall hip function and contribute to conditions like lateral knee pain or IT band syndrome. Thus, the primary focus of the Ober Test is on the tensor fasciae latae, making it the correct answer in this scenario.