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Hypertension is usually accompanied by the impairment of organs and arteries, and seriously threatens human health. Aerobic exercise can effectively prevent and treat hypertension. However, the mechanism of exercise therapy in hypertension is still unclear. In this study, we explored how aerobic exercise effectively reversed the impairment of the heart, kidney, and arteries caused by hypertension through a pathomorphological perspective. Spontaneously hypertensive rats were subjected to fifteen weeks of 45 min and 90 min swimming training without weight, and we then tested the effect of exercise on the morphology and structure of the heart, kidney, iliac artery, and branch of the mesenteric artery. We found that the myocardial fibers became thinner, the cross-sectional area of myocardial cells decreased, and cardiomyocyte edema disappeared after 45 min of aerobic exercise. Additionally, the pathological microstructure of glomeruli and renal tubules were improved. At the same time, aerobic exercise could also reverse the morphology and structure of arteries and mesenteric artery branches in spontaneously hypertensive rats.

Morphological Study of the Effect of Aerobic Exercise on Organs and Arteries in Spontaneously Hypertensive Rats