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.
Hip internal rotation exercises are designed to strengthen the groin, or adductor muscles of the inner thigh. These muscles bring the legs together while the outer hip muscles, called abductors, pull the legs apart. Muscular strength and flexibility imbalances can occur between the outer hip muscles and the groin muscles. Exercises can promote internal hip rotation to correct these imbalances.
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.