Which muscle group is primarily involved in 'Runners knee'?

'Runner's knee' is commonly associated with issues relating to the iliotibial band (ITB). The ITB is a thick band of fibrous tissue that runs along the outside of the thigh, extending from the hip to the shin. It plays a critical role in stabilizing the knee during activities such as running and walking.

In cases of runner's knee, the ITB can become tight or inflamed due to repetitive friction against the outside of the knee joint, particularly during flexion and extension movements. This friction can lead to pain and discomfort on the outer side of the knee, which characterizes the condition.

Understanding the role of the iliotibial band highlights why it is the muscle group most prominently involved in this condition. Other muscle groups, like the hamstrings, gracilis, and adductors, contribute to knee stability and function but are not directly linked to the symptoms or mechanics of runner's knee in the same way that the iliotibial band is.