Comparative effect of 12 weeks of slow and fast pranayama training on pulmonary function in young, healthy volunteers: A randomized controlled trial.

Context: Pranayamas are breathing techniques that exert profound physiological effects on pulmonary, cardiovascular, and mental functions. Previous studies demonstrate that different types of pranayamas produce divergent effects.

Aim: The aim was to compare the effect of 12 weeks of slow and fast pranayama training on pulmonary function in young, healthy volunteers.

Effect of antihypertensive drug therapy on short-term heart rate variability in newly diagnosed essential hypertension.

1. Abnormalities of cardiac autonomic regulation are a potential mechanism for morbidity despite blood pressure (BP) lowering in hypertension. Analysis of short-term (5 min) heart rate variability (HRV) provides a non-invasive probe of autonomic regulation of sino-atrial (SA) node automaticity.

Sex differences in short-term heart rate variability in patients with newly diagnosed essential hypertension.

The authors report the results of the analysis of heart rate variability (HRV) indices during 5 minutes of supine rest and 5 minutes of standing and conventional indices of autonomic function in 69 men and 51 women with untreated newly diagnosed hypertension matched for body mass index and resting blood pressure. Mean RR interval, standard deviation of normal-to-normal RR intervals, low-frequency RR spectral power, HRV during deep breathing at 6 breaths per minute, and the 30:15 ratio (maximum RR interval 30th beat/minimum RR interval 15th beat) were significantly lower in women (P=.01, .

Short-term heart variability and oxidative stress in newly diagnosed essential hypertension.

We sought to evaluate oxidative stress parameters like malondialdehyde, total antioxidant status, and time, frequency domain heart rate variability indices in newly diagnosed untreated hypertension. We also sought to study the correlation between heart rate variability and oxidative stress parameters in normotensive and newly diagnosed untreated essential hypertensives. Fourteen normotensive males and 36 newly diagnosed male hypertensives were enrolled for the study.

Effect of antihypertensive therapy on serum lipids in newly diagnosed essential hypertensive men.

The effect of antihypertensives on serum lipids in newly diagnosed male essential hypertensive patients was studied. The participants (n = 99) were randomly allocated to receive amlodipine, atenolol, enalapril, hydrochlorothiazide, and a combination of amlodipine and atenolol. Lipid parameters were estimated before and after 8 weeks of therapy.