In the seated calf raise (knees flexed approximately 90º),
the gastrocnemius are virtually
inactive while the load is borne almost entirely by the soleus.
Also see dorsiflexion
In moderate force, the soleus is preferentially activated
in the concentric phase, whereas the gastrocnemius is preferentially
activated in the eccentric phase (Nardone & Schiepatti, 1988).
Also see Calf