Iyengar Yoga and Blood Pressure in Hypertension Patients
Author Information
Author(s): Debbie L. Cohen, LeAnne T. Bloedon, Rand L. Rothman, John T. Farrar, Mary Lou Galantino, Sheri Volger, Christine Mayor, Philippe O. Szapary, Raymond R. Townsend
Primary Institution: University of Pennsylvania School of Medicine
Hypothesis
Does Iyengar yoga reduce blood pressure in patients with prehypertension to Stage I hypertension compared to enhanced usual care?
Conclusion
Iyengar yoga produced clinically meaningful reductions in blood pressure at 12 weeks compared to baseline, but did not show significant differences compared to enhanced usual care.
Supporting Evidence
- Iyengar yoga participants showed a 6 mmHg reduction in 24-hour systolic blood pressure at 12 weeks.
- The enhanced usual care group had significant reductions in blood pressure at 6 weeks but not at 12 weeks.
- Both groups had no significant changes in weight or BMI over the study period.
- Psychometric evaluations showed no significant differences in mood or stress between groups.
Takeaway
This study looked at whether doing yoga can help lower blood pressure in people who have slightly high blood pressure. It found that yoga helped some, but not more than regular health advice.
Methodology
A randomized controlled trial comparing 12 weeks of Iyengar yoga to enhanced usual care in adults with untreated prehypertension or Stage I hypertension.
Potential Biases
Self-selection bias as participants may have been more motivated to pursue lifestyle changes.
Limitations
High dropout rate in the Iyengar yoga group and the trial was unblinded.
Participant Demographics
78 yoga-naïve adults aged 22 to 69, with a mix of genders and races.
Statistical Information
P-Value
P = .05 for SBP, P < .01 for DBP
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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