Efeitos hemodinâmicos após técnica Bhramari Pranayama em indivíduos hipertensos

Abstract

Introduction: Systemic Arterial Hypertension (SAH) is a multifactorial syndrome involving changes in arterial and myocardial structures. Bhramari Pranayama (BP) is a Yoga breathing technique that can assist in modulating baroreceptors and aid the hypertension control. Objectives: To evaluate the effects of Bhramari Pranayama practice as a resource in the treatment and control of blood pressure in patients with hypertension. Methods: An experimental study was conducted with individuals randomized in two groups: BP andpursed lip breathing (PLB). Both groups performed a breathing exercise protocol using BP or FLwith a total duration of 5 minutes. The variables analyzed were systolic blood pressure (SBP), diastolic blood pressure (DBP) and photoplethysmography parameters, such as heart rate (HR), crest time (CT), delta T (DT) and increase index (II) pre intervention and post intervention. Results: Twelve individuals with a median (p25-p75) age of 56.0 (50.2-59.0) years old in the PLB and 51.5 (45.2-55.7) in the BP, each group was consisted of 5 women and 1 man. Only a significant reduction in HR was observed in the post intervention on BP group (p = 0.050). No significant variables were found in the other variables. Conclusion: The BP technic indicated a reduction effect on HR, however without alteration in other hemodynamic parameters.