OBESITY LIMITS THE BENEFITS OF EXERCISE IN LOWERING BLOOD PRESSURE IN HYPERTENSIVE

Abstract

Was investigated the influence of obesity on post-exercise hypotension (PEH) in hypertensive subjects. Sixteen mild aged women underwent an anthropometric evaluation and blood sampling for analysis of lipoproteins levels. Then held a session of aerobic exercise lasting 40 minutes and moderate intensity between. Blood pressure was measured before exercise, immediately at the end and at 10, 20 and 30 minutes of recovery. Was observed systolic PEH of -15.2, -9.5 and -1.7mmHg and diastolic PEH of -3.6, -1.5 and -3.4mmHg for the eutrophic, overweight and obese, respectively. Subjects with lower waist circumference had higher values of HPE (-17.2 and -7.2 mmhh) that subjects with larger circunferences (-0.3 and -1.8 mmHg) for systolic and diastolic PEH, respectively. We observed systolic and diastolic PEH of -16.5 and -4.7mmHg and -3.5 and -3.2 for normocholesterolemic and hypercholesterolemic subjects, respectively. There was a significant difference in systolic HPE between groups with waist circumferences to 88cm and above 88cm, but the magnitude of the hypotensive differences in other variables are considered clinically important. Therefore, these data show that obesity and hypercholesterolemia, in addition to being a risk factor for hypertension, also limits the benefits of exercise in the hypotensive response in hypertensive. Abdominal fat is the main factor in this limitation.