BACKGROUND Practice of Yoga causes several changes in normal physiology. Meditation has positive short and longterm rewards which include a balance of the parasympathetic and sympathetic functions. Cardiovascular autonomic functions are quantified by changes in the heart rate (HR) and blood pressure (BP) in response to some of the physiological stimuli and different types of Pranayamas is known to alter the autonomic function. OBJECTIVES To assess the effects of Sukha Pranayama and Bhastrika Pranayama on cardiovascular autonomic functions in normal healthy medical students. MATERIALS AND METHODS 50 male and female young healthy volunteers studying at PES Institute of Medical Sciences and Research, Kuppam belonging to age group of 17-22 years were included for the study. Parasympathetic activity was assessed by observing the heart rate changes to immediate standing from lying down position, heart rate changes during deep breathing and heart rate changes during Valsalva manoeuvre using Biopac Student Lab MP30 device. Sympathetic activity was assessed by observing blood pressure changes on immediate standing from lying down position and blood pressure changes during sustained hand grip using sphygmomanometer before and after yoga.
BACKGROUND Stroke (cerebrovascular accident) is an important cause of disability in countries like India and longterm care of these bedridden patients is usually undertaken by the family members. A caregiver is a person who takes responsibility for those who cannot completely care for themselves. Taking care of a chronically ill member in the family usually causes stress to the caregiver causing disturbances in the autonomic function. Thus, the present study is undertaken to find out the effect of longterm caregiving on cardiovascular autonomic functions in a caregiver. MATERIALS AND METHODS 57 caregivers of post-stroke bedridden patients, both male and female, were included in this longitudinal study. Parasympathetic activity was assessed by observing the heart rate changes to immediate standing from lying down position, heart rate changes during deep breathing and heart rate changes during Valsalva manoeuvre. Sympathetic activity was assessed by observing blood pressure changes on immediate standing from lying down position and blood pressure changes during sustained hand grip.
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