iliotibialbandet

The iliotibial band, often referred to as the IT band, is a thick, fibrous band of connective tissue that runs along the outside of the thigh. It originates from the iliac crest, a bony prominence in the pelvis, and extends down the lateral side of the leg, attaching to the tibia, the larger bone in the lower leg, just below the knee. The IT band is composed primarily of collagen and functions to stabilize the knee and hip joints during locomotion. It plays a crucial role in preventing the thigh from collapsing inward when you stand on one leg and contributes to hip abduction.

Conditions affecting the iliotibial band are common, particularly among athletes involved in activities that involve repetitive knee flexion and extension, such as running and cycling. Iliotibial band syndrome (ITBS) is a frequent overuse injury characterized by pain on the outside of the knee. This pain often arises from friction between the IT band and the bony prominence of the femur (thigh bone) as the knee bends and straightens. Factors contributing to ITBS can include muscle imbalances, weakness in the hip abductor muscles, improper training techniques, and inadequate stretching. Treatment typically involves rest, ice, physical therapy to address underlying causes, and sometimes anti-inflammatory medication.