Leg pain when walking · claudication
Leg pain when you walk
Leg pain when you walk that eases once you stand still is usually claudication, the classic sign of peripheral artery disease: arteries narrowed by plaque cannot raise blood flow to working muscle. The ankle-brachial index measures it in minutes.
Cramping that appears at a predictable distance and disappears within minutes of stopping is one of the few symptoms in medicine with a simple, objective test behind it.
What causes claudication?
Peripheral artery disease is the narrowing of arteries by atherosclerotic plaque along the vessel lining. As plaque accumulates the artery narrows, stiffens and loses function, and blood flow falls — usually to the legs first.
Muscle that is working needs more blood than muscle at rest. When the supply cannot rise to meet demand, the muscle produces a cramping, aching or tired sensation that stops when the demand stops. Hence the pattern: predictable onset distance, relief within minutes of standing still, and reproducibility from one day to the next.
What can be mistaken for claudication?
| Pattern | More likely |
|---|---|
| Cramping at a predictable walking distance, relieved by standing still | Arterial claudication |
| Aching and heaviness after standing still for a long time, relieved by elevation | Venous |
| Pain radiating from the back down the leg, worse with certain positions, relieved by leaning forward | Spinal or nerve root |
| Burning or tingling at rest, worse at night | Small-fiber neuropathy — see burning feet at night |
| Pain in the foot at night relieved by hanging it out of bed | More advanced ischemia — needs prompt assessment |
Why do so many people have artery disease without knowing it?
Because people adapt. Walking distance shortens quietly, a hill gets avoided, a parking space closer to the door gets chosen, and the symptom never becomes a complaint. Peripheral artery disease is the third leading cause of atherosclerotic cardiovascular morbidity after coronary disease and stroke, and an estimated 202 million people were living with it worldwide in 2010.
Prevalence rises steeply with age — from roughly 5% of adults in their late forties to roughly 18% by the late eighties in the wealthier countries surveyed. The strongest associations were current smoking, then diabetes, hypertension and high cholesterol.
How is claudication tested?
The ankle-brachial index compares systolic pressure at the ankle with the arm and takes minutes. Because a calcified artery can make that index falsely reassuring, it is paired with the pulse volume waveform and the toe-brachial index, neither of which depends on the vessel being compressible. Why that matters.
Why find peripheral artery disease early?
Not primarily because of the legs. The same process is happening in the coronary and cerebral circulation, and a measurable abnormality in an accessible artery is information about all of them. It is also one of the areas where the interventions — stopping smoking, supervised walking, treating blood pressure and glucose — are well established and measurable.
Frequently asked questions
What does claudication feel like in the legs?
It feels like cramping, aching or tiredness in working leg muscle that shows up at a predictable walking distance and stops within minutes of standing still. The pattern repeats from one day to the next. Pain that radiates from the back and eases when you lean forward, or burning and tingling at rest, points to other causes.
How long does it take for claudication to go away?
An episode of claudication eases within minutes of standing still, because the muscle stops demanding more blood than narrowed arteries can deliver. That quick relief at rest, together with a predictable onset distance, is what separates it from venous aching, which eases with elevation, and from spinal pain, which eases by leaning forward.
How do you fix claudication?
Claudication is one of the areas where the interventions are well established and measurable: stopping smoking, supervised walking, and treating blood pressure and glucose. The first step is to confirm it. The ankle-brachial index takes minutes, and the pulse volume waveform and toe-brachial index cover the legs where calcified arteries make the index read falsely normal.
References
- Fowkes FGR, Rudan D, Rudan I, et al. Comparison of global estimates of prevalence and risk factors for peripheral artery disease in 2000 and 2010: a systematic review and analysis. Lancet. 2013;382(9901):1329–1340. doi:10.1016/S0140-6736(13)61249-0
- Aboyans V, Criqui MH, Abraham P, et al. Measurement and interpretation of the ankle-brachial index: a scientific statement from the American Heart Association. Circulation. 2012;126(24):2890–2909. doi:10.1161/CIR.0b013e318276fbcb
Related reading
Medically reviewed by Dr. Gurpreet Singh Padda, MD, MBA, MHP, medical director of Measura. Last reviewed .