Evaluating the Effect of Ujjayi pranayama on heart rate variability in Hypertension-A Randomised controlled trial

Hypertension (HTN) is defined by a systolic blood pressure (SBP) of 130 mm Hg or higher and/or a diastolic blood pressure (DBP) of 80 mm Hg or higher. It is one of the most prevalent chronic conditions and a leading cause of stroke, heart disease, heart failure, and kidney failure. In India, hypertension is responsible for a significant percentage of fatalities. One reason for this is a lack of awareness, as many individuals remain asymptomatic until major health issues arise. Around 90-95% of hypertension cases are primary (essential), caused by environmental, genetic, and lifestyle factors such as poor diet, smoking, alcohol, and sedentary habits. Age-related metabolic disorders like insulin resistance also contribute to higher blood pressure, which increases the risk of various cardiovascular and kidney diseases. Management of hypertension involves lifestyle changes like diet and exercise. If ineffective, medication such as diuretics, beta-blockers, calcium channel blockers, ACE inhibitors, and ARBs may be prescribed to achieve a target blood pressure of 130/80 mm Hg or lower. Yoga, especially pranayama (breathing exercises), has been found to have a significant antihypertensive effect. Pranayama involves controlled breathing techniques like inhalation, retention, and exhalation to regulate heart rate and blood pressure. It reduces heart rate and both systolic and diastolic blood pressure, benefiting the cardiovascular system. Ujjayi pranayama, known as "victorious breath," is particularly beneficial for reducing stress and improving cardiovascular function. This technique helps restore autonomic balance by reducing sympathetic nervous activity and enhancing parasympathetic response, which improves heart rate and overall heart health. Heart rate variability (HRV) is a useful tool to assess autonomic nervous system function, and studies show that pranayama can increase HRV, improving the balance between the sympathetic and parasympathetic systems. This balance is essential for managing stress and hypertension effectively. Overall, yoga and pranayama provide a complementary approach to hypertension management by promoting relaxation, improving autonomic function, and reducing stress. These practices offer an additional, natural option for those seeking non-pharmacological ways to manage their blood pressure.