The calf, or lower leg, consists of two major muscles: the gastrocnemius, which is the large muscle on the back of the calf and the soleus, which is the smaller muscle that runs closer to the side of the calf. Calf muscle tears or strains are common in athletes with tight calf muscles. Strains are graded on a scale of 1 to 3, with grade 1 being a minor tear, involving up to 10 percent of muscle fibers. Grade 2 is a moderate tear, involving up to 90 percent of the fibers, and grade 3 is the most serious tear, involving more than 90 percent of the muscle fibers, or a complete rupture. It is important to recognize the signs and symptoms of a calf muscle tear so you can seek immediate assistance.
Grade 1 Strain
With a grade 1 strain, you will feel a twinge of pain in your calf. You may still be able to exercise, walk or run with it, but it will most likely feel tight and tender. Typically, this type of strain will last for two to five days.
Grade 2 Strain
A grade 2 strain is more intense. You will notice a sudden, sharp pain in the back of the lower leg. The calf will feel weak, and it will hurt to walk or make any kind movement with it. You may experience some swelling and moderate bruising. Your calf will most likely feel tight and sore for a week or more.
Grade 3 Strain
A grade 3 strain is the most serious calf tear and is recognized by a severe, immediate pain in the back of the leg. Sometimes you will feel a popping sensation. Walking or moving will be difficult, and you will not be able to contract or flex the calf muscles at all. You will notice considerable bruising and swelling, and it will be painful to the touch. If the calf muscle has completely ruptured, you can often see the muscle bunched up at the top of the calf.
