Effect of Bhastrika pranayama on neuro- cardiovascular-respiratory function among yoga practitioners

<i>Bhastrika Pranayama</i>, a vigorous yoga breathing technique, impacts both the autonomic nervous system and brain function. This prospective interventional study examined the acute effects of <i>Bhastrika</i> on heart rate variability (HRV) and electroencephalogram (EEG) patterns in 20 regular yoga practitioners. Significant increases in heart rate and sympathetic activity, as well as alterations in brain wave spectra, were observed during and after the practice indicated by a rise in low-frequency (LF) power and the LF/HF ratio, along with a decrease in high-frequency (HF) power and a substantial decrease in beta, theta, alpha and gamma waves while delta waves increased. The findings suggest <i>Bhastrika</i> enhances sympathetic activity and modifies cognitive states. Further research is necessary to understand its long-term benefits and therapeutic potential.