ORIGINAL ARTICLE
Year : 2020  |  Volume : 52  |  Issue : 1  |  Page : 20-24

Analysis of immediate effect of nadishodhana pranayama in the ratio of 1:3:2 on autonomic and respiratory variables in healthy individuals


1 Department of Yoga, SDM College of Naturopathy and Yogic Sciences, Ujire, Karnataka, India
2 Division of Yoga and Physical Therapeutics, SDM College of Naturopathy and Yogic Sciences, Ujire, Karnataka, India
3 Department of Natural Therapeutics, SDM College of Naturopathy and Yogic Sciences, Ujire, Karnataka, India
4 Centre of Excellence, Government of India, SDM College of Naturopathy and Yogic Sciences, Dakshina Kannada, Karnataka, India
5 Department of Physiology, KS Hegde Medical College, Deralakatte, Mangaluru, Karnataka, India

Correspondence Address:
Thittamaranahalli Muguregowda Honnegowda
Centre of Excellence, Government of India, SDM College of Naturopathy and Yogic Sciences, Dakshina Kannada, Karnataka
India
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DOI: 10.4103/ym.ym_21_19

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Background: Nadishodhana pranayama (NS) has been used extensively for relaxation as well as therapeutics by many practitioners; the physiological effects of NS in this specific ratio have not been studied yet. Hence, the present study aims to evaluate the immediate effect of NS pranayama in the ratio of 1:3:2 with a time line of 6:18:12 s and its role in clinical application. Materials and Methods: Sixty healthy volunteers were recruited for the study. Individuals were randomly allocated into two groups, NS pranayama with antarkumbhaka (Group 1) and breathe awareness (Group 2). For case group, intervention was given for 12 rounds and for the control group, breath awareness was given for 12 rounds and assessed immediately after the practice. Results: In the study group, a significant decrease in mean heart rate (HR) (p < 0.0001) and a significant increase in mean respiratory rate (RR), NN50 (p < 0.0001), RMSSD, and pNN50 (p < 0.0001) after the intervention compared to their prevalues and with that of the control group were noted. Frequency domain analysis of HR variability showed a significant decrease in the pre- and post-values of low-frequency (LF) power (p < 0.0001), very LF, and LF/high-frequency (HF) power (p < 0.0075) and a significant increase in the pre- and post-values of HF power (p < 0.001) after the intervention in the study group. Conclusions: The result concludes that the immediate effect of NS pranayama in the ratio of 1:3:2 brings parasympathetic activity in the study group by decreasing RR and HR. Hence, the NS pranayama with kumbhaka is a better method to increase parasympathetic activity.


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