IMMEDIATE EFFECT OF BHRAMARI PRANAYAMA ON CARDIACAUTONOMIC VARIABLE IN PATIENT WITH HYPERTENSION

Abstract

Background: Hypertension is a common public health problem. Affecting major group of population. Yoga is a mind body intervention. Bhramari Pranayama is yoga based breathing practice proven to have positive impact on physiology and psychology. AIM: The study intended to see the immediate effect of bhramari pranayama on cardiac autonomic variables in patient with hypertension. Materials and methods: 24 Hypertensive subject within age range 30-60 years. Who visited arogyadhama Svyasa campus to attend one week residential yoga program for hypertension .All the subject where trained in practice of Bhramari pranayama for 3 days. On fourth day 12 of subject underwent Bhramari Pranayama and remaining 12 went for Breath Awareness, and on fifth day the intervention was inter changed in between the group. Heart Rate, Systolic Blood Pressure, Diastolic Blood Pressure and Heart Rate Variability (HRV) were accessed using non-invasive continuous blood pressure monitoring system and ECG. Results: In Yoga Group we found a significant improvement in systolic blood pressure (p<0.02,-2.08%), Heart rate (p<0.04,-1.61%), LF (p<0.004,-26.26%), HF (p<0.02, 20.01%) and LF/HF ratio (p<0.007,-34.41%).and non-significant improvement in diastolic blood pressure (p>0.08,1.43),RMSSD(p>o.16,15.67%),NN50(p>0.73,11.14%),Mean RR(p>0.15,-1.89%) and PNN50(p>0.65,9.58%). In Control Group systolic blood pressure (p<0.02,-2.08%) and diastolic blood pressure (p<0.008,2.97%).were increased significantly. LF (p>0.10, 12.92%), LF/HF ratio (p>0.20, 46.15% and Mean RR (p>0.52, 0.54%) were increased. Heart rate (p>o.45,-0.45%), HF (p>0.11,-16.12%), RMSSD (p>0.84,-2.53%), NN50 (p>0.49,-7.60%), PNN50 (p>0.54,-8.94%) were decreased. Post intervention comparison between groups showed significant difference in LF (p<o.oo6) and we did not find improvement in any of other variables assessed. Conclusion: Five minutes practice of Bhramari pranayama has beneficial effects on cardiovascular parameters in hypertensive patients. However further RCT should be performed to confirm the present findings.