Researchers from B. J. Medical College in Ahmedabad, India, studied numeric measures of respiratory function, cardiovascular parameters and lipid profiles of those practicing Raja Yoga meditation. The profiles of short and longterm meditators were compared with those of non-meditators.
The study found that vital capacity, tidal volume and breath holding were significantly higher in short and longterm meditators than in non-meditators. Longterm mediators had significantly higher vital capacity and expiratory pressure than short term meditators.
Diastolic blood pressure was significantly lower in both short and longterm meditators as compared to non-meditators. Heart rate was significantly lower in longterm meditators than in shortterm meditators and non-meditators.
Lipid profiles showed a significant lowering of serum cholesterol in short and longterm meditators as compared to non-meditators. Lipid profiles of short and longterm meditators was better than the profile of non-meditators, inspite of similar physical activity.
The researchers conclude that Raja Yoga meditation provides significant improvements in respiratory function, cardiovascular parameters and lipid profiles.