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Exercise and carotid atherosclerosis.

N P E Kadoglou¹, F Iliadis, C D Liapis

¹Department of Vascular Surgery, Medical School, University of Athens, Greece. nikoskad@yahoo.com

European Journal of Vascular and Endovascular Surgery : the Official Journal of the European Society for Vascular Surgery

|November 9, 2007

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Physical inactivity is linked to increased carotid intima-media thickness (IMT). While structured exercise shows inconsistent results, increased physical activity may reduce overall cardiovascular risk, potentially slowing carotid atherosclerosis progression.

Area of Science:

Cardiovascular Medicine
Preventive Cardiology
Vascular Biology

Background:

Carotid atherosclerosis and increased carotid intima-media thickness (IMT) are key indicators of generalized atherosclerosis.
These conditions significantly elevate the risk of stroke and myocardial infarction.
The role of physical activity in managing carotid atherosclerosis progression requires further evaluation.

Purpose of the Study:

To systematically review the existing literature on the impact of increased physical activity and structured exercise on the prevention and treatment of carotid atherosclerosis.

Main Methods:

A systematic review of cross-sectional, interventional, prospective, and retrospective clinical studies was conducted.
Searches were performed on MEDLINE and EMBASE databases (1985-2007) using terms related to carotid atherosclerosis, IMT, physical activity, exercise, and cardiovascular risk factors.

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Studies involving carotid ultrasonography and quantitative indexes were included.

Main Results:

Most cross-sectional studies indicate a correlation between physical inactivity and increased carotid IMT.
Structured lifestyle interventions yielded inconsistent effects on carotid thickening progression.
Improved cardiorespiratory fitness and management of risk factors (hyperglycemia, insulin resistance, hyperlipidemia, hypertension, obesity) are potential mechanisms through which exercise may inhibit carotid atherosclerosis.

Conclusions:

The long-term impact of exercise on decelerating carotid atherosclerosis development remains uncertain.
Increased physical activity likely reduces overall cardiovascular risk, indirectly mitigating carotid atherosclerosis progression.
Given carotid artery disease's equivalence to coronary artery disease, similar physical activity recommendations are warranted for patients with subclinical or manifest carotid atherosclerosis.