This syndrome is usually developed by people who suddenly increase their level of activity, such as runners who increase their mileage. Other risk factors for ITBS include gait abnormalities such as overpronation, leg length discrepancies, or bow-leggedness.
Individuals who suddenly elevate their exercise levels, such as runners increasing their mileage, are prone to developing this syndrome.  Other contributing factors to ITBS include abnormal walking patterns, including overpronation, uneven leg lengths, and bow legs.