Living With Vitality: Are you still stretching your IT band?
March 17, 2014
VAIL — Runners and cyclist know the iliotibial band or IT band well. We tend to roll it, knead it and attempt to stretch it all the time. It is usually a love-hate relationship heavily biased toward hate. The problem is, recent research indicates much of this self-inflicted suffering doesn't do much to change the IT band.
The IT band is the thickened aspect of the fascia lata (connective tissue) that surrounds your entire thigh. This dense unyielding tissue allows transfer of forces between the hip and knee. It arises from the hip in three portions: from the gluteal muscles in the back, off the crest of the ilium (the hip bone) in the middle, and it envelops the tensor fascia lata muscle at the front. It inserts below the knee and helps stabilize the joint.
Iliotibial band syndrome is a painful condition that affects the lateral knee of athletes, especially runners and cyclists. It is also called iliotibial band friction syndrome because it is commonly thought the pain is a result of abnormal tracking, forward and backward, of the band against the femur. This notion has been challenged by recent research, which shows the IT band does not move forward and backward at all. The pain is actually from compression of the IT band into the outside of the femur, which irritates the pain-sensitive fatty tissue under the IT band's attachment near the knee.
The compression at the knee worsens when tension increases at the hip and internal rotation occurs at the knee. While tension at the hip can be a result of tight glutes, it is more commonly weakness in hip stabilizers that allows the pelvis to dip slightly and the knee to collapse inwards as we bend the knee while on one leg.
Increasing strength can reduce these symptoms. One study showed runners who added hip abductor exercises could significantly improve muscle strength (51 percent) and resolved knee symptoms in 91 percent of the athletes tested. This is consistent with what we see in our office. While we do address the local inflammation, release adhesions between the IT band and quads, and stretch the hip musculature, we always assess the hip stabilizers for weakness. Prescribing muscle activation and strength exercises yields better results.
Over the years, I have been guilty of prescribing rounds of painful IT band rolling. (Sorry guys.) I still use rolling for other types of problems and still have patients roll the glutes and external rotators of the hip, just not specifically the IT band. The IT band often feels tight, so it seems natural to want to elongate it through stretching or rolling. However, this rarely works.
IT band does not stretch
It has been said that the IT band has tensile strength of steel. A 2010 study used strain gauges implanted in cadaver IT bands to measure tension. Their analysis showed that even with maximal muscle contraction, the IT band was rigid, lengthening only 0.2 percent. Anatomical studies show the IT band is firmly attached to the entire length of the femur. It doesn't shorten. It doesn't lengthen.
There are many benefits to rolling and stretching in many areas of the body. While rolling and attempting to stretch the IT band probably doesn't cause any irreparable harm to tissue, it really does feel lousy. Try rolling the quads instead of the IT band and find a good balance of hip mobility to gluteal strength and you'll see better results with fewer tears.
For links to the research discussed here, visit http://www.markjpitcher.com.
Mark Pitcher is a chiropractor and exercise physiologist with Vail Integrative Medical Group, located at the Vail Vitality Center. He specializes in rehabilitative medicine. For more information, visit http://www.vailhealth.com or http://www.vailvitalitycenter.com.
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