One of the most common deficiencies seen in runners is a compensation called a “hip drop.”
Hip drop occurs when full body weight is being supported on one leg, the stance phase of running. Typically, a weakness in the hip of the weight bearing leg causes the opposite hip to drop.
Hip drop can lead to or cause: IT band pain, Hip pain, Knee pain, etc.
Even if you are not rehabbing an injury, prevention is key.