A common injury with distance runners is ITB syndrome. This is pain on the lateral or outer side of the knee. It is caused by friction or rubbing of the ilial tibial band (ITB) against the outer tissues and structures of the knee, and you guessed it, it causes a lot of pain when running
Iliotibial Band Syndrome (ITB Syndrome), Frisco, TX
Treatment for IT Band Pain
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Manage your ITB Syndrome