Swim training in genetically hypertensive rats of the Lyon strain: effects on plasma lipids and lipoproteins
1986
: We studied the effects of training by forced swimming on plasma lipid and lipoprotein concentrations in the Lyon genetically hypertensive rats (LH), its normotensive (LN) and low blood pressure (LL) controls. Training was carried out 5 days a week for 5 weeks. The duration of daily training sessions was increased 15 min per day, from 2 to 6 h/day. Following training low density lipoprotein-cholesterol (LDL-C) was significantly lower (P less than 0.01) in LL, and the very low density lipoprotein (VLDL-C) was also lower in LN (P less than 0.01) and LH (P less than 0.05) rats compared with their sedentary controls. High density lipoprotein-cholesterol (HDL-C) was not significantly increased after training in all strains. Compared with controls, plasma total cholesterol, plasma triglycerides and phospholipids were not modified by training. The reduction of LDL-C, VLDL-C as well as the increase of the HDL-C:VLDL-C ratio suggest a beneficial effect of training on atherosclerosis and perhaps coronary heart disease risk.
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