Soleus
Soleus is a large large muscle, deep to Gastrocnemius. Together the Gastrocnemius, Soleus and Plantaris are known as Triceps Surae. Soleus is used constantly in standing to maintain an upright position.
Origin
- Upper half of the posterior surface of the tibia, along the soleal line.
- Upper third of the posterior fibula.
Insertion
- Posterior surface of the calcaneus via the achilles tendon.
Actions
- Plantar flexion.
Innervation
- Tibial nerve.
Daily uses
- Standing upright.
Example strengthening exercises
- Calf raises (bent knee).
- Seated calf raise.
Example stretches
- Soleus stretch.
- Soleus stretch II.
- Advanced soleus stretch.
Related injuries
- Calf strain.
- Achilles rupture.
Related muscles
- Gastrocnemius.
- Tibialis posterior.
