It is the section of the fascia that runs from the tensor fascia lata muscle (a hip abductor) down to the lateral side of your knee. It's basically a very long tendon. When you run or squat, the it band gets shifted to the front and then to the back of side of your tight.Quote:
Originally Posted by Poop Loops
This constant rubbing can cause it to become inflamed and inflexible. When you squat, the gluteus pulls it, causing friction (and pain) on the outside of the knee. Sometimes it can cause pain at the hip. In any event, you lose flexibility.
This is a picture of what's on your leg:
And this is the fascia lata and the long tendon that is the IT band:
I stole this pic from somewhere. The parts in red show where it hurts:
And here is the fascial lata and it-band in relation to their opposite, the sartorius (a hip traverse adduction.)
To avoid/treat IT band pain, you do this stretch (search for IT-band stretch)
And you use a foam roller to perform myofascial release (a form of massage) in the area. Warning: it will hurt like a ************.
We have an entire thread (already in the sticky) covering myofascial release here: http://www.bullshido.net/forums/showthread.php?t=63985