Statistical analysis of quantitative electrocardiographic signals with standard limb leads: Influences of gel use, subject positions, and electrodes configurations Khotimah, S.N., Wahyuni, F.S., Viridi, S. and Haryanto, F.
Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung
Jalan Ganesha 10, Bandung 40132, Indonesia
Abstract
Electrocardiogram is a recording of the heart^s electrical activity that provides helpful information of cardio electrophysiological process. One cycle of cardiac contraction and relaxation produces the basic waves that consists of a P wave (atrial depolarization), a QRS complex (ventricular depolarization), and a T wave (ventricular repolarization). In this study, the quantitative electrocardiographic signals from six adult female subjects were measured using Cobra4 Electrophysiology with standard limb (extremity) leads. The correlation between Electrocardiographic signals during measurement on each subject was analysed statistically. We investigate the influences of some treatments: the use of gel in the measurement process, the position of the subject (lying or sitting), and the exchange positions of exploring and indifferent electrodes. The data was analyzed statistically for parameters duration and amplitude of the electrocardiographic signals.
Keywords: electrocardiographic signals, statistical methods, position of the subject ,electrodes configurations
