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Exercise training combined with antihypertensive drug therapy. Effects on lipids, blood pressure, and left ventricular mass.

We studied exercise training combined with the use of antihypertensive drugs and examined the following questions. (1) Are there additive antihypertensive benefits with exercise and drug therapy combined? (2) Does drug therapy limit exercise-induced lipid improvements? (3) Does exercise that includes weight training and walking/jogging affect the left ventricle? Fifty-two hypertensive men were randomly assigned, double-blind, to diltiazem hydrochloride, sustained release (360 mg daily), propranolol hydrochloride (240 mg daily), or placebo and exercised three times per week for 10 weeks. Baseline blood pressure (145/97 mm Hg) fell after training (131/84 mm Hg) in all groups. Exercise decreased total and low-density lipoprotein cholesterol levels in all groups. Increases in the levels of high-density lipoprotein cholesterol were similar in placebo and diltiazem groups, whereas the propranolol group changed in an opposite direction. In all groups, left ventricular mass increased with training, while diastolic function was unchanged. We conclude that (1) drug therapy provided no additive benefit to the antihypertensive effects of exercise, (2) propranolol limited improvements in high-density lipoprotein cholesterol, and (3) exercise did not adversely affect the left ventricle.