Ramadan fasting produces changes in the electrocardiogram of healthy young adults
Journal Title: MedPulse -International Medical Journal - Year 2015, Vol 2, Issue 9
Abstract
Introduction During the month of Ramadan, Muslims refrain from drinking and eating between sunrise and sunset. Aim: This study is aimed to understand the effect of this long intermittent fasting schedule during Ramadan on the electrical activity of the heart in healthy young adults. Objective: To prove that fasting has a positive effect on the electrical activity of the heart seen in electrocardiogram (ECG) and thus it decreases the cardiovascular risk. Method: Fifty healthy adults were included in the study. They were all tested before and on the 28th day of the Ramadan fast. The following parameters of ECG were thoroughly studied. RR interval, P wave duration , PR interval, QRS complex, QT interval, QTC interval, P axis, QSR axis, Taxis, P(II)volt, S(V1)volt, R(V5)volt. Results: A significant increase in the RR interval was observed. Other changes in the ECG found at the end of fasting were positive however not statistically significant. The changes seen were:, an increase in P wave and PR interval, decrease in QRS complex, QT interval, QTC interval, P axis became less positive, QRS axis and T axis has become more positive .P voltage and R voltage too has decreased and S voltage became less negative. Dominance of the sympathetic nervous system (SNS) over the parasympathetic nervous system (PNS) has been shown to be a strong risk factor for cardiovascular disease. Conclusion: Fasting is associated with significant improvement in autonomic cardiac modulation through enhancement of parasympathetic modulation and probably reflected in the form of changes seen in ECG of subjects in this study. The effect of fasting on electrical activity of the heart should be further explored to recognize fasting as a potential tool for improving cardiovascular health physiologically.
Authors and Affiliations
B Shruthi
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