Iliotibial band

Written by Dr Sheila Strover on March 14, 2025

The iliotibial band is a thickened and strong tendinous strap which runs down the side of the thigh. Page updated April 2024 by Dr Sheila Strover (Clinical Editor)

iliotibial band or ITBThe ITB running down the outer thigh.

What does the iliotibial band do?

The iliotibial band (ITB) and the muscles associated with it (gluteus maximus and tensor fasica lata) function to extend, abduct, and laterally rotate the hip.

Problems with the feet, like flat-footedness, may stress the ITB and cause pain on the outer side of the knee.

Peer-reviewed papers
  • Quote from peer-reviewed paper:

    "....The mechanical importance of the ITB is highlighted by the prevalence with which it is injured, particularly in runners...."

    Citation: Hutchinson LA, Lichtwark GA, Willy RW, Kelly LA. The Iliotibial Band: A Complex Structure with Versatile Functions. Sports Med. 2022 May;52(5):995-1008. doi: 10.1007/s40279-021-01634-3. Epub 2022 Jan 24. PMID: 35072941; PMCID: PMC9023415.

  • Quote from peer-reviewed paper:

    ....[The gluteus maximus and tensor fascia lata] muscles....directly insert (either partially or fully) into the ITB, contributing to the functional mechanics...."

    Citation: Hutchinson LA, Lichtwark GA, Willy RW, Kelly LA. The Iliotibial Band: A Complex Structure with Versatile Functions. Sports Med. 2022 May;52(5):995-1008. doi: 10.1007/s40279-021-01634-3. Epub 2022 Jan 24. PMID: 35072941; PMCID: PMC9023415.

End of paper Quick links

Iliotibial band overuse injury

Repetitive bending and straightening activities of the knee, for example in running, may irritate a tight iliotibial band, leading to pain in the knee and possibly the hip.

Problems in the ankle and foot, eg flat feet, also cause strain in the ITB.

Peer-reviewed papers End of paper Quick links

Management of iliotibial band problems

Management involves -

  • alteration of running patterns (eg wider step width, higher stride frequency)
  • foam rolling of the ITB
  • ITB stretching
  • hip strengthening
Peer-reviewed papers End of paper

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