DOI: 10.36347/sjams.2020.v08i02.033

Pages: 520-524

Menopause causes an imbalance of the autonomic nervous control of cardiovascular system.Therefore it’s associated with decreased heart rate variability (HRV), which is due to reduced parasympathetic or increased sympathetic outflow to the heart. The objective of our study was to compare HRV between premenopausal and postmenopausal women. Anthropometric measurements such as age, height, weight, BMI were measured. A total of 60 normotensive both married as well as unmarried females (30 premenopausal and 30 postmenopausal) were included. HRV was recorded and the data were subjected to time domain and frequency domain analysis. In frequency domain parameters we observed that parasympathetic activity predominates as indicated by Total Power (ms²), HF (ms2) in premenopausal women as compared with postmenopausal group although the difference was not significant. In time domain parameters, we found a significant difference in mean HR between two groups. The comparative decrease in HRV in postmenopausal women implies a considerable reduction in autonomic modulation, which can be attributed to change in hormonal factors.