What myotome corresponds to heel raises?

The myotome that corresponds to heel raises is S1. The S1 nerve root primarily innervates the muscles that control the plantar flexion of the ankle, which includes the gastrocnemius and soleus muscles. These muscles are responsible for performing heel raises, a movement often assessed in clinical settings to evaluate functional mobility and strength in the lower extremities.

In the context of heel raises, activation of S1 is essential because this root is responsible for the muscular actions that lift the heel off the ground, allowing the individual to rise onto their toes. Effective functioning of these muscles is critical in performing this motion, which plays a vital role in activities such as walking, running, and jumping.

Other myotomes listed have specific functions too; for instance, L4 predominantly influences the muscles involved in dorsiflexion, while L5 is associated with ankle and toe movements. S2 primarily contributes to specific aspects of both plantar flexion and additional fine movements of the foot. However, it is the S1 myotome that is directly tied to the performance of heel raises.