Key result
Bhramari pranayama fails to significantly reduce systolic blood pressure compared to control.
Why the study?
Previous studies have shown immediate effects of Bhramari pranayama on cardiovascular parameters in healthy individuals, but none have been conducted in hypertensive patients.
Does Bhramari pranayama reduce blood pressure and heart rate, and improve oxygen saturation in hypertensive patients?
RCT (n=40)
Randomly distributed
No
Does Bhramari pranayama reduce blood pressure and heart rate, and improve oxygen saturation in hypertensive patients?
Absolute Event Rate: 118.85% vs 127.28%
p-value: p=0.11
A 5-minute session of Bhramari pranayama significantly reduced systolic blood pressure from baseline in hypertensive patients, although the difference compared to a no-treatment control group was not statistically significant.
Acute within-group BP drop lacks between-group significance; leaves efficacy unproven and requires larger RCTs before clinical consideration.
Background: A lot of studies have shown the immediate effect of Bhramari pranayama on cardiovascular parameters in healthy individuals but to the best of our knowledge none have been done on the hypertensive patients Aim: This study aimed to determine the immediate effects of Bhramari pranayama on hypertensive patients in terms of Systolic and Diastolic Blood pressure, Heart rate and oxygen saturation (SpO2) Methods: Total of 40 participants meeting the inclusion criteria were included in the study.The participants were randomly divided into two groups experimental (Bhramari pranayama) and the control group of 20 each.The experimental group performed the Bhramari pranayama for 5 minutes.The control group did not receive any treatment.Pre and immediate post-intervention scores were measured in terms of systolic BP, Diastolic BP, heart rate and SpO2.Result: On comparing the pre and post-intervention values of the outcome measures, it was observed that there was a statistically significant difference in Systolic BP values in Bhramari pranayama group.No significant difference was seen in Pre and Post values of Systolic and Diastolic BP, Heart rate and SpO2 values in Control group.On comparing between the groups, it was observed that there was no statistically significant difference between the two groups in terms of systolic BP, Diastolic BP, heart rate and SpO2Conclusion: Based on the present study, it can be concluded that the Bhramari pranayama has an immediate positive effect on reducing the Systolic Blood pressure acting through parasympathetic dominance.It can be practised in daily routine to reduce the stress originated cardiovascular risk in future.
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Sathe et al. (2020) conducted an RCT in Hypertension (n=40). Bhramari Pranayama vs. No treatment (rest) was evaluated on Systolic Blood Pressure (between groups) (p=0.11). A 5-minute session of Bhramari pranayama significantly reduced systolic blood pressure by 8.85 mmHg from baseline within the intervention group (p=0.004), although the difference between the intervention and control groups was not statistically significant (p=0.11).
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