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.
The posterior chain is made up of muscles such as the spinal erector, glutes and hamstrings. The spinal erector muscles straighten the back and allow for side-to-side rotation. The glute muscles function to move the leg away from the midline of the body and to stabilize and rotate the hips.lute and Hamstring Focus. To focus on the glute and hamstring muscles during the back extension, the pad of the Roman chair should be below the hips, allowing them to move during the exercise.