A muscle cramp is a sudden and involuntary contraction of one or more muscles in the body. While muscle cramps are generally harmless, they could be a symptom of peripheral artery disease. Narrowing of the arteries that deliver blood to your legs can produce cramp-like pain in your legs and feet while exercising.
Because the most frequently affected artery in intermittent claudication is the popliteal artery, symptoms are most common in the calf muscles. This pain or discomfort goes away once the activity is stopped and during rest. Many people do not report this problem to their health care providers because they think it is a natural part of aging or due to some other cause.