Intermittent Claudication is the name given to a temporary reduction in blood flow to the legs. It often occurs in people with cardiovascular risk factors and is often one of the symptoms experienced by those suffering from peripheral vascular disease (PVD). Intermittent claudication occurs when the person suffering from PVD has atherosclerosis (a hardening and narrowing of the arterial wall) within the arteries in their legs. During exercise, these already compromised arteries become further obstructed by the muscles surrounding them as those muscles contract.
Intermittent claudication presents as a cramping, tightening or tiredness in the legs, it occurs during exercise and is followed by a feeling of almost instantaneous relief following rest.