Eksternrotasjon

Eksternrotasjon refers to the movement of a limb or body part away from the midline of the body in a rotational manner. This motion is primarily controlled by the muscles of the rotator cuff, particularly the infraspinatus and teres minor muscles. In the shoulder joint, external rotation involves turning the arm outward, away from the torso. This movement is essential for many daily activities, such as reaching for objects behind you, throwing, or playing sports like tennis and baseball.

In the hip joint, external rotation involves turning the thigh or leg outward. This movement is facilitated by muscles like the gluteus maximus, obturator internus, and piriformis. Hip external rotation is crucial for walking, running, and maintaining balance. It allows for proper gait mechanics and contributes to the stability of the pelvis.

Impairments in external rotation can result from muscle weakness, injury to the rotator cuff or hip muscles, or joint stiffness. Rehabilitation exercises often focus on strengthening the external rotators and improving range of motion. For example, shoulder external rotation can be targeted with resistance bands, while hip external rotation can be improved with exercises like clamshells or glute bridges. Maintaining adequate external rotation is important for overall joint health and functional movement.