CALF / GASTROC STRETCHING (Standing against a wall): Place both hands flat on a wall, step both feet back so your body is leaning forward. (sportstarsmag.com)
Gastroc crosses your knee and ankle and is the bigger of the two calf muscles. (fitnessandpower.com)
The calf's comprised of 3 distinct muscle heads, the medial and lateral gastrocs, beside the supporter soleus muscle. (mensquats.com)