HIP ASSESSMENT SERIES PART 14: OBER'S TEST FOR TIGHTNESS OF THE TENSOR FASCIA LATAE The Ober's test is a quick test to assess the length of the tensor fascia latae muscle. This muscle often becomes tight in runners, what leads to the fact that the tendon of this muscle is rubbing over the lateral condyle of the femur. That´s the reasoning why this condition is also called runner's knee. Don´t forget to subscribe to our page for more videos! | Physiotutors