Original Editors - Merlin Roggeman
The Noble’s test (also known as Noble's Compression test) is a provocative test of the iliotibial band, developed by Clive Noble. It is commonly used as an indication for iliotibial band syndrome; however, no evidence-based research has been done yet to control the validity of this test. Other tests that could be used are the modified Ober’s test and the Renne Creak test. 
Clinically Relevant Anatomy
Relevant anatomy related to the test is knowledge of the iliotibial band. It starts as the iliotibial tract, which is a thickening of the fascia lata, originating from the iliac crest. The iliotibial tract continues downward, laterally from the femur. At the greater trochanter, fibres of the tensor fascia lata muscle and gluteus maximus muscle inserts in the iliotibial tract. When approaching the knee joint, the iliotibial tract passes the lateral epicondyle of the femur and splits into two structures: the iliopatellar band, and a distal extension inserting at the Gerdy tubercle (Figure 1).
During walking and running, the Iliotibial band is subjected to frictional and compressive forces over the lateral epicondyle. Repetitive strain, improper footwear, lower extremity mal-alignments and muscle imbalance cause increased friction. Iliotibial band (ITB) friction syndrome is an overuse injury common in runners, cyclists, weightlifters, skiers, and soccer players. It is characterized by pain over the lateral femoral epicondyle.
The purpose of this test is to detect pain, abnormalities, tightness of the iliotibial tract, which can be indicative for the iliotibial band syndrome. It helps to differentiate iliotibial band syndrome from other common causes of lateral knee pain.
Procedure: The patient is supine or side-lying with the injured side up. Grasp just above the ankle and slowly bend the knee back and forth several times from 0-90° while palpating and applying firm pressure on the lateral epicondyle of the femur for crepitus with the thumb of the other hand.
Interpretation: Palpable snapping, rubbing or “squeaky hinge-like” crepitus or localized pain that increases with pressure at or above the epicondyle (often at 30° of flexion) indicates ITB syndrome.
Reliability & Validity: Unknown
Clinical Bottom Line
- Kasunich NJ. Changes in low back pain in a long distance runner after stretching the iliotibial band. Journal of Chiropractic Medicine 2003; number 1, volume 2; 37-40. Level of Evidence: B
- Noble CA. The Treatment of Iliotibial Band Friction Syndrome. Brit. J. Sports Med 1979;13;51-54
- Rosenthal MD. Clinical Testing for Extra-Articular Lateral Knee Pain. A Modification and Combination of Traditional Tests. North American Journal of Sports Physical Therapy 2008; volume 3, number 2:107-109 LEVEL OF EVIDENCE: B
- Dubin J. Evidence Based Treatment for Iliotibial Band Friction Syndrome: Review of Literature.Biomechanics August 2005
- SieunNarine-McKay J. Evaluation of outcomes in assessment of iliotibial band syndrome rehabilitation programs (Doctoral dissertation, University of British Columbia.)
- Knee Orthopaedic Test - A Strategic Approach to Assessing the Knee; University of Western States, College of Chiropractic, Clinic Protocol; Renne; Page No.34; Adopted 12/12. (accessed on 21.07.18 from Knee_Orthopedic_Tests.pdf)
- Physiotutors. Noble Compression / Noble's Test | Iliotibial Band Friction Syndrome ITBS. Available from: https://www.youtube.com/watch?v=PmUGl7ryQOo