04/05/2023
The Soleus muscle is a crucial muscle located in the calf that plays an important role in returning blood and lymphatic fluid back to the heart. This muscle is responsible for the "second pump" that assists the heart in pumping blood throughout the body. In this blog, we will discuss the important function of the Soleus muscle and its responsibility for returning blood and lymphatic fluid back to the heart, as well as the negative effects of a weak soleus from a medical perspective.
The Soleus muscle is a large, flat muscle located in the posterior compartment of the calf. It originates from the proximal tibia and fibula and inserts into the calcaneus via the Achilles tendon. This muscle is primarily responsible for plantar flexion of the ankle joint, which allows us to stand on our toes and walk. However, its importance goes beyond its role in movement.
One of the primary functions of the Soleus muscle is to act as a peripheral pump to return blood back to the heart. This is accomplished through the mechanism of the muscle pump. The muscle pump is a mechanism by which the Soleus, contract and relax to create a pumping action that moves blood and lymphatic fluid through the circulatory system.
In addition to its role in returning blood and lymphatic fluid back to the heart, the Soleus muscle is also responsible for maintaining venous and lymphatic pressure. This is important because the pressure in the venous and lymphatic systems can become low when we are inactive or standing still for long periods. This can lead to a buildup of fluid in the lower legs, resulting in swelling and discomfort. The Soleus muscle helps to maintain pressure in these systems, preventing the buildup of fluid and the associated negative effects.
A weak Soleus muscle can have negative effects on the circulatory system. For example, a weak Soleus muscle can lead to an increased risk of venous insufficiency. Venous insufficiency is a condition in which the veins in the legs are unable to pump blood back to the heart effectively, resulting in blood pooling in the legs. This can lead to swelling, varicose veins, and in severe cases, skin ulcers. In a study by Shami et al. (2021), it was found that patients with venous insufficiency had significantly weaker Soleus muscles than healthy controls.
In addition to venous insufficiency, a weak Soleus muscle can also contribute to the development of lymphedema. Lymphedema is a condition in which the lymphatic system is unable to drain fluid from the tissues effectively, resulting in swelling and discomfort. In a study by Czerniec et al. (2010), it was found that exercise targeting the Soleus muscle was effective in reducing the symptoms of lymphedema.
In conclusion, a weak Soleus muscle can have negative effects on the circulatory system, leading to an increased risk of venous insufficiency and lymphedema. Therefore, it is important to maintain the strength and function of the Soleus muscle and the HeartPartner can help to re-train your Soleus muscle.
