What actions are performed by the Tensor fascia latae?

The Tensor fascia latae (TFL) is primarily involved in the flexion and internal (medial) rotation of the hip. It plays an important role in stabilizing the hip and knee during various activities, especially those that involve movement, such as walking or running.

As the TFL contracts, it not only aids in flexing the hip but also assists in bringing the thigh toward the body's midline through its internal rotation function. This action is particularly crucial during movements that demand stability and coordination of the lower limbs.

In contrast, the other listed actions do not accurately characterize the TFL's functions. The muscle does not primarily engage in adduction or external rotation, nor does it extend the hip or contribute to elevation. Understanding the TFL's role in hip mechanics can help in developing effective training and rehabilitation protocols, particularly in individuals with hip or knee issues.