The IT Band is a broad, flat sheet of connective tissue that runs from the lateral side of ilium (hip bone) down the outside of the leg to the tibia (lower leg). This tissue serves as a tendon for the Tensor Fascia Lata muscle as well as the Gluteus Maximus muscle. In addition, the IT Band serves as a passive restraint for lateral forces to the hip and knee joints.
IT Band Muscles: The Tensor Fascia Lata muscle has two divisions (the anterior, posterior fibers), while the Gluteus Maximus muscle has three divisions (the iliac, the sacral, and coccygeal fibers). When all divisions of these two muscles are strong, movements of the hip and knee can be performed more easily, efficiently, and pain-free. The resulting pull on the Ilio-Tibial Band will be appropriately directed and this can provide a great amount of stability to the hip when performing such movements as hip flexion, extension, abduction and internal/ external rotation.
Conversely, a loss of stability (weakness) in any of the muscles that pull on the Read the rest of this entry