During the Single-leg assessment, knee valgus compensation is attributed to overactivity in which muscle?

Knee valgus compensation, commonly seen during the single-leg assessment, is often associated with overactivity in the tensor fascia latae (TFL). The TFL is a muscle located on the side of the hip that assists in hip flexion, abduction, and medial rotation. When there is overactivity in the TFL, it can lead to increased tension on the iliotibial (IT) band, causing the knee to collapse inward, resulting in knee valgus.

This compensation pattern indicates a potential imbalance in the surrounding muscles, particularly those responsible for stabilizing the hip and knee during movement. In this context, the TFL's overactivity can reflect a lack of proper stabilization from the gluteus medius and other hip stabilizing muscles. Understanding this concept is crucial for identifying movement dysfunction that may lead to injuries and for implementing corrective strategies that involve strengthening the gluteus medius and improving overall hip stability.