RENNE'S TEST FOR ILIOTIBIAL BAND SYNDROME (ITBS) Nex to the Noble's test, another common test in the literature is the Renne's Test. ITBS is usually diagnosed based on history taking and clinical presentation. One of the most important items here is lateral knee pain (as there not many other structures that can get irritated there), running as hobby as well sudden increases in load in history. The Renne Test has not been subject to diagnostic accuracy studies which is why the clinical value rema