Study on Resting Blood Pressure and Heart rate in Individuals with Normal and High Body Mass Index
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2018, Vol 17, Issue 6
Abstract
Body mass index (BMI) is an established parameter to assess overweight and obesity in adults. Different studies have reported adverse effects of increased body mass index on cardiac health. Heart rate and blood pressure are largely regulated by the autonomic nervous system, and reflects the state of balance that exists between the sympathetic and parasympathetic nervous systems. The aim of this study was to search for any significant relationship between resting heart rate and resting blood pressure of different individuals with respect to their body mass index. 200 subjects (all adult males only) belonging to age groups between 20 years to 50 years were selected after informed consent of the participants. The total study sample included 100 overweight / obese subjects and 100 subjects within normal Body Mass Index (BMI). The participants were required to attain a calm and quiet posture for 10 minutes before the procedure. Thereafter, their blood pressures were measured using a mercury sphygmomanometer from the left arm in a sitting position. The heart rate as calculated by examination of the radial artery pulse, and confirmed by resting electrocardiograph. In our study, the resting blood pressures (both systolic and diastolic) were greater in overweight / obese individuals compared to normal-weight individuals. The difference was statistically significant (p < 0.001). Body mass index had a strong positive correlation with diastolic blood pressure [R = 0.92; p < 0.00001. This might be due to a raised sympathomotor or reduced vagal response in these subsets; consistent with higher prevalence of adverse cardiovascular outcomes in these subjects.
Authors and Affiliations
Julie Bhattacharya, Tirthankar Guha Thakurta
Keywords
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- EP ID EP375627
- DOI 10.9790/0853-1706021215.
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