An investigation on the influence of yogic methods on heart rate variability

Abstract

Low-frequency breathing (BR <12 cpm) plays a primary role in eliciting physiologically significant changes in HRV. By identifying a similarity in breathing oscillations of HR of FAG, YG, and PBG, the results recognize the coexistence of attention and breathing strategies and postulate their joint role in sustaining autonomic benefits, while effects induced by breathing alone on HRV could be attained even intermittently.

Effect of yoga on pulse rate variability measured from a venous pressure waveform

“…Several works have studied the role of yoga in the overall health and a healthy lifestyle [15], [4], [5]. Also, yoga has been proposed in severe mental illnesses: it was found a reduction in general psychopathology ratings and an improvement in cognition and functioning in schizophrenic patients, and a significant benefit in reducing the severity of depressive symptoms [16].…”

“…Results showed that high frequency power was significantly higher in PRV analysis from NIVA than in heart rate variability (HRV) from ECG, suggesting that the NIVA signal may enhance measurement of parasympathetic activity. Some authors have studied the effect of yoga on the autonomic function via HRV analysis, showing an increase in parasympathetic activity [4], [5]. In this work, we want to study the effect of yoga on PRV measured with the NIVAband.…”

“…In addition, we propose the Lagged Poincaré Plot (LPP) for nonlinear analysis of PRV series. Significant differences were already found in Poincaré Plot parameters, when they were used together with time and frequency analyses of heart rate variability, to study autonomic regulation in yogic and control groups of subjects [5]. Moreover, LPP has been been proven to be reliable for ultra-short time HRV analysis [6].…”