Thorn (letter) Thorn or Ã¾orn (Ã¾, Ã¾) is a letter in the Old English, Gothic, Old Norse and modern Icelandic alphabets, as well as some dialects of Middle English. It was also used in medieval Scandinavia, but was later replaced with the digraph th, except in Iceland, where it survives.
The importance of hip internal rotation. Hip joint internal rotation (sometimes also called medial rotation) occurs when the femur rotates within the hip joint, toward the mid-line of the body. It also occurs in standing when the lower limb is fixed and the pelvis rotates â so the left side ASIS moves in front of the right side, for example, or vice versa on the other side.
Synergist and Eccentric Defined. In order for movement to occur, muscles must contract. According to Andrew Biel's Trail Guide to the Body, a muscle that leads an action as a primary mover is called an agonist. A muscle that supports the agonist is called a synergist.Muscles that work together in achieving the entire movement are called synergists. Concentric movement is when a muscle is contracting and shortening at the same time.ynergist Muscles. As you lower yourself into the eccentric phase of the squat, all four of your quadriceps are elongated. The four quads are the vastus lateralis, vastus intermedius, vastus medialis and rectus femoris.