16 / 17
Volume 6, Issue 3 (Suppl)
J Hypertens, an open access journal
ISSN: 2167-1095
Page 88
conferenceseries
.com
Hypertension 2017 & Nuclear Cardiology 2017
September 11-13, 2017
JOINT EVENTON
and
September 11-13, 2017 | Amsterdam, Netherlands
2
nd
International Conference on
Hypertension & Healthcare
2
nd
International Conference on
Non-invasive Cardiac Imaging, Nuclear Cardiology & Echocardiography
Effect of yoga on cardiovascular autonomic activity and reactivity in essential hypertensive patients
Khadka R, Paudel BH
and
Karki P.
B P Koirala Institute of Health Sciences, Nepal
T
he exact cause of essential hypertension (EH) remains unknown. However, sympathetic hypertonicity, stress and stress-
induced vasoconstrictor hormones are associated as major causes. EH may lead to myocardial infarction, stroke. Thus, EH
patients have to take long-term therapy. Despite, long-term normalization of blood pressure by anti-hypertensive drugs, there
exist autonomic dysfunction. Yoga known to decrease BP in EH patients, however, it is not much clear whether combined easy
yogic practices improve cardiovascular autonomic regulation inEHpatients.Thus, we studied the effect of yoga on cardiovascular
activity and reactivity in EH patients. The study included 40 essential hypertensive patients. They were randomized into yoga
(n=20, age 46.71±8.79 years) and control (n=20, age 44.8±7.47 years) groups. Yoga group practiced meditation, pranayama
and few easy asanas for 40 min/day for one month. Control group did not practice yoga or any relaxation procedures. Cardiac
autonomic activity was assessed using short-term heart rate variability (HRV) and reactivity using deep breathing (DBT),
Valsalva Maneuver (VM), Handgrip (HGT) and Lying to standing (LST) tests in both groups at zero and after one month.
Institutional Ethical Committee approved the study. Both groups had comparable age, height, weight, BMI, SBP, DBP, HR, and
respiratory rate. SBP, DBP, HR, and BMI decreased in yoga group after one month of yogic practice. Time domain measures of
HRV, which are markers of cardiac parasympathetic activity [SDNN: 29.8.9(18-33.9) vs 35.2(26.87-38.8) ms, p=0.013; rMSSD:
13.5(11.5-21.86) vs 37.4(30.9-43.3) ms, p=0.001] increased in yoga group as compared to control group after yoga. E:I ratio and
Valsalva ratio, which are indicators of parasympathetic reactivity also increased in yoga group. Both parasympathetic activity
and reactivity increased in EH patients after a month of yoga practice. It indicates that yoga increases cardiac autonomic
modulation by increasing cardiac parasympathetic activity, which is better for cardiac health.
rita.khadka@gmail.comJ Hypertens 2017, 6:3(Suppl)
DOI: 10.4172/2167-1095-C1-003