Influence of Dietary Habits on Blood Pressure in Preadolescent Boys of Coastal Karnataka

Abstract: Background: The relationship between dysregulation of cardiovascular autonomic functions and development of the hypertension has been well established in adults. Apart from the genes and environmental factors, obesity, sedentary lifestyle and dietary habits are the important contributors of increasing prevalence of hypertension even in youngsters. Studies on adults revealed that the vegetarian diet appears to be low in factors positively related to blood pressure when compared with non vegetarian diet.

Aims & Objective: This study was designed to find the impact of vegetarian and non – vegetarian diet on blood pressure regulation in early part of the life, like preadolescent boys.

Materials and Methods: The study was conducted on 100 vegetarian and 87 Non-vegetarian pre-adolescent boys from Mangalore aged between 9-13 years. The parameters studied were BMI and Blood Pressure (Basal Supine, and hand dynamometer stress test).Values obtained were analyzed by paired and unpaired ‘t’ test and P value <0.05 was considered as significant.

Results: The results showed that basal systolic blood pressure (SBP) and diastolic blood pressure (DBP) were increased in nonvegetarians.

Both SBP and DBP increased significantly in both the groups during handgrip dynamometer test. But on analysis of these changes in SBP and DBP, only change in DBP was significantly more in vegetarians.

Conclusion: Diet regulates blood pressure by influencing the autonomic activity as early as pre adolescent age group. Increased sympathetic tone at rest and a borderline response to handgrip dynamometer stress test in non vegetarians may act as a predisposing factor for the future development of cardiovascular disorders.

National Journal of Physiology, Pharmacy and Pharmacology
Bhat B, Shenoy J, Dutt A, Kumar S, Kalpana B, Bhat S, Shet U