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.
Tweet. Every sport has its own set of primary muscles responsible for the majority of work of the sports specific motion. Primary muscles, or movers, are the first muscles called upon when there is a need for increased speed or force. For a cyclist, these muscles are located in the hips and legs.Sometimes referred to as pistons, the legs, revolving at 80 to 100 reps per minute, are whatâs responsible for producing power and speed.or a road cyclist pedaling while in the saddle, most of the power happens between the 12 oâclock and 5 oâclock position of the pedal stroke. This is when a majority of the primary muscles are activated. Hip flexion, along with hip and knee extension are the primary movements of a pedal stroke.