Verification of the effect of an exercise programme using walking and diet adjustment in hypertension

Abstract

One of the leading risk factors for cardiovascular disease is hypokinesis. Therefore, an exercise regimen is emphasized for the prevention and control of hypertension, while at the same time aiming to reduce overall cardiovascular risk in addition to achieving normal blood pressure values.
 The aim of this study was to verify the effect of an exercise programme using walking and dietary modification on the reduction of blood pressure values in hypertension, while the effect of the intervention on weight reduction and change in body composition was also studied.
 The research method in our work was case study. The proband was a physically inactive overweight woman, age 55 years, treated hypertensive, whose blood pressure at entry to the program reached the values of mild hypertension even with treatment. Baseline data were resting blood pressure values measured for 7 days in the morning and evening, a two-day record of physical activity, a seven-day record of diet, diagnosis and analysis of body composition with the InBody device, and calculation of the WHR index. The proband developed a physical activity intervention program using walking for 12 weeks, a minimum of 5 times per week, at moderate intensity, with a gradual increase in daily walking time from 30 to 60 min/day. As an adjunct to the exercise intervention, she was recommended a dietary modification. At the end of the follow-up period, blood pressure values were measured in the same way, a diagnostic and body composition analysis was performed with the InBody device, and the WHR index was calculated. The intervention program was also evaluated in relation to overweight and body composition as important factors in hypertension.
 After 12 weeks of the intervention programme, the mean reduction in systolic blood pressure was 6,29 mmHg in the morning and 4,86 mmHg in the evening. The average reduction in diastolic blood pressure was 4,57 mmHg in the morning and 3,14 mmHg in the evening. There was also a decrease in heart rate by an average of 4,07 beats per minute. At the same time, the intervention program led to a reduction in the proband's body weight (by 7,2 kg), a decrease in BMI (from 27,8 to 25,5 kg/m2), a decrease in body fat percentage (by 3,9 %) and a decrease in WHR index (from 0,91 to 0,88).
 These results confirmed that regular physical activity and dietary modification play an important role in the treatment of high blood pressure and verified the effectiveness of expert recommendations in hypertension. They also confirmed the positive effect of these recommendations on weight reduction and body composition. In summary, this work verified the beneficial effects of walking supported by dietary modification on the following risk factors for cardiovascular disease - high blood pressure, overweight, body fat, and central obesity.