Iliotibial Band. Permission Joseph E. Muscolino. The Muscular System Manual - The Skeletal Muscles of the Human Body, 4th ed. (Elsevier 2017).

Differences in Knee and Hip Adduction in Runners with Iliotibial Band Syndrome

This study seems to show a relationship between iliotibial band (ITB) syndrome and knee adduction (genu varum) and the activation of the TFL. A relationship can be two incidents that occur together, termed a “coincidence.” Or there can be a causal relationship between them; i.e., one causes the other to occur.