Comparison of Cardiovascular Autonomic Function Status in Normal Healthy Individuals of Various Ayurveda Prakritis

Introduction: An ancient form of traditional medicine, Ayurveda, is based upon the various forms of prakriti and has drawn scientific interest from medical professionals. Important scientific applications of discerning prakriti (body constitution) lie in predicting disease susceptibility of an individual, and deciding disease prognosis and treatment of choice for it. This calls for inventing a universally applicable, standardized tool for the analysis of Prakriti, which would be helpful to integrate Ayurvedic fundamentals with allopathic medicine. Objectives: To assess and compare cardiovascular autonomic function status in normal healthy individuals of various Ayurveda Prakritis. Methods: This cross sectional study was carried out on 79 randomly selected normalhealthy subjects in the age group of 18-40 years with dual constitutional prakriti types (Dvandvaja Prakriti). Various cardiovascular autonomic function tests were assessed in all these subjects. Results: Out of all the cardiovascular reflex tests, mean values for heart rate response to postural change (30:15 ratio) as well as heart rate response to deep breathing were found to be the highest in kapha dominant prakriti, though not statistically significant. Both these parameters denote parasympathetic activity. Whereas, the mean value for heart rate response to Valsalva maneuver, which indicates both sympathetic and parasympathetic activity, was found to be the highest in vata prakriti though not statistically significant. Of all the tests done to evaluate the heart rate variability, the mean value for normalized high frequency (HFnu) which signifies parasympathetic modulation was again found to be the highest in kapha dominant prakriti individuals, though not statistically significant. Conclusion: Our study results are suggestive of a parasympathetic predominance in normal healthy individuals with prakriti of kapha as primary dosha.