IC Value
About Us
Editorial Board
Contact Us

Comparative study of heart rate variability in normal and obese young adult males

Authors:Chethan HA, Niranjan Murthy, Basavaraju K,
Int J Biol Med Res. 2012; 3(2): 1621- 1623  |  PDF File


Our aim is to study the effect of obesity on Heart Rate Variability in young adult males. Our study focuses on using Heart Rate Variability to determine relation between obesity and cardiac autonomic disturbances in young males. Methods: Subjects were categorized as Controls (n=50) and Cases (n=50) based on BMI. ECG was recorded in a quiet room with the subject in supine position after 10 minutes of rest. Analog ECG signal was converted to digital by using National Instruments NI-DAQ 7.5 USBD 6008. HRV parameters like SDNN, E:I, LF nu, HF nu, LF/HF were calculated with the help of HRV software (version 1.1). Results: There was a significant (p<0.01) decrease in SDNN, E/I ratio, HF nu and a significant (p<0.01) increase in LF nu, LF/HF in cases when compared to controls. Conclusion: - In Obese group our study showed a significant reduction in parasympathetic activity and a significant increase in sympathetic activity. There was a shift in the sympathovagal balance towards sympathetic predominance among obese males in contrast to normal males.