Do you have TIGHT CALVES? In today's video, I cover the best calf stretches, treatment, prevention, and causes of calf tightness. Tight muscles may result from overuse or cramps, but several treatments and stretches can help. The calf muscles, or gastrocnemius and soleus muscles, are behind the shin bone, just above the ankles. They pull the heel up when a person is walking, running, or standing.