RESUMEN
<p><b>OBJECTIVE</b>Based on high fat diet induced the model of atherosclerosis (AS) in C57BL/6J mice, authors studied the effect of endurance exercise on the atherosclerostic formation.</p><p><b>METHODS</b>Forty eight 8-week-old C57BL/6J mice were divided into four groups randomly (n=12): control (group N), 12-week atherosclerosis model group(group H), 12-week atherosclerosis model plus 11-week treadmill training group (group H + E) and 22-week atherosclerosis model group (group HS). Then, we observed the effects of endurance exercise on the ultra structure of aorta by electron microscope.</p><p><b>RESULTS</b>Twenty weeks of high fat diet could result in serious AS in mice while endurance exercise could significantly antagonize or restrain the occur of AS. In addition, 10 weeks of endurance exercise could alleviate the symptom of pathological changes which already happened on aorta wall.</p><p><b>CONCLUSION</b>It indicated that endurance exercise could effectively prevent and cure AS that induced by high fat diet.</p>