Intermittent claudication is a cramping sensation in the legs that is present during exercise or walking and occurs as a result of decreased oxygen supply. This cramping usually occurs in the calf, but may also occur in the feet. When intermittent claudication is discussed it is measured by the number of "blocks" (e.g. 1 or 2 blocks) one can walk comfortably. It often indicates severe atherosclerosis. One of the hallmarks of this clinical entity is that it occurs intermittently. ...