Muscle Peroneus Posterior

The peroneus posterior muscle (or m.Peroneus Posticus) is one of the muscles that is located in the human lower leg. It helps in maintaining stability and balance when walking and moving.

The peroneus posterior muscle is one of the many muscle fibers located in the front of the lower leg. It passes from the ankle joint through the posterolateral aspect of the tibia and joins the distal fibula and talus. The muscle fiber mass consists of an inner head (m. Peroneus Longus) and an outer head (peroneus longus), with the two heads of the muscle converging on the same surface of the bones.

The main function of this muscle is to support the foot when standing and walking, and also helps improve coordination and stability when running and walking. When we stand, the peroneus posterior muscle holds the foot upright, making it key to our balance.

Without the peroneus posterior muscle, our body would be more vulnerable and unstable when walking. Its function is not limited to the legs, however, it is involved in many other processes, including stabilization of the head and body.

When we take a deep breath, the peroneus posterior muscles contract and lift the abdominals and diaphragm. This opens the way for air to fill our lungs, and with this, the muscles of the anterior abdominal wall relax. However, the anterior abdominal wall is connected to the posterior peroneus muscle, so the work of the muscle also affects breathing. This simply shows how even such a simple process as breathing is dependent on the good functioning of the muscles of the posterior peroneus and how they help our body work smoothly and correctly.

The muscle is also involved in the processes of the hands, in particular when bending the hand and fingers. Despite its usual importance in everyday life, the peroneal posterior muscle can manifest itself in unexpected ways. For example, peroneus posterior palsy or severe injury can cause uncontrollable clubfoot when the foot changes from heel to heel or any other direction that requires postural adjustments. Additionally, damage to the muscle can lead to knee weakness, causing "broadway shin." This is a serious condition that occurs when the line of force exceeds the force before the foot leaves the floor. Damage to the posterior muscle can be corrected with training that includes stretching and strengthening of the muscles and restoration of the vascular system,