Effect of Different Pranayamas on Respiratory Sinus Arrhythmia
Introduction: Respiratory Sinus Arrhythmia (RSA) is the differential change of Heart Rate (HR) in response to inspiration and expiration. This is a noninvasive sensitive index of parasympathetic cardiac control. Aim: To evaluate changes in RSA by utilizing a simple and cost-effective analysis o...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
JCDR Research and Publications Private Limited
2016-03-01
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| Series: | Journal of Clinical and Diagnostic Research |
| Subjects: | |
| Online Access: | https://jcdr.net/articles/PDF/7408/16306_CE[Ra]_F(Sh)_PF1(Vsu_Om)_PFA(AK)_PF2(PAG).pdf |
| Summary: | Introduction: Respiratory Sinus Arrhythmia (RSA) is the
differential change of Heart Rate (HR) in response to inspiration
and expiration. This is a noninvasive sensitive index of
parasympathetic cardiac control.
Aim: To evaluate changes in RSA by utilizing a simple and
cost-effective analysis of electrocardiographic (ECG) tracings
obtained during performance of four pranayama techniques.
Materials and Methods: Fifty two trained volunteers performed
the following pranayamas with different ratios for inspiration
and expiration: sukha (1:1), traditional (1:2), pranava (1:3)
and savitri (2:1:2:1) and ECG was recorded while performing
the techniques with rest period of 5 minutes in-between. HR
was calculated and maximum HR during inspiration (Imax),
minimum HR during expiration (Emin), differences between Imax
and Emin (∆), percentage differences between Imax and Emin (∆%)
and expiration: inspiration ratio (E:I) calculated by respective
formulae. Statistical analysis was carried out using repeated
measures of ANOVA with Tukey-Kramer multiple comparisons
test.
Results: There were significant differences between groups in
all five aspects namely: p= 0.0093 for mean Imax, p = 0.0009 for
mean Emin, and p < 0.0001 for ∆ HR (I-E), ∆% HR (I-E) and E:I
ratio. Pranava pranayama produced the greatest changes in all
five comparisons.
Conclusion: We suggest that further short and long term
studies be undertaken with pranava pranayama in patients
to further qualitatively and quantitatively evaluate inherent
mechanisms of this simple technique. Addition of these costeffective techniques to the medical armory will help patients of
rhythm disorders and other cardiovascular conditions. |
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| ISSN: | 2249-782X 0973-709X |