Knee and plantar flexion muscle actions with Muscle Premium

This video is from an older version of Muscle Premium. The prime movers of knee flexion are the biceps femoris, semitendinosus, semimembranosus, gracilis, sartorius, gastrocnemius, and popliteus. The prime movers of plantarflexion are the gastrocnemius, soleus, tibialis posterior, flexor digitorum longus, flexor hallucis longus, and plantaris. Check out our latest work at . Learn more about muscle movements here: