The iliotibial band is a broad flat tendon on the side of the thigh which originates from the pelvis and travels down the side of the leg to the knee. When the iliotibial band becomes too tight ...

This is tendinitis. The Achilles tendon is a thick band of tissue attaching the heel to the calf muscle. This tendon helps a person walk, run, and jump and endures a great deal of stress.

Contrary to popular belief, this band is a connective tissue—not a muscle or a tendon—so it can’t really be stretched. Physical therapist and triathlete, Bridget Dungan Twedt, D.P.T., of ...