In each cycle of the electrocardiogram wave there are P, Q, R, S and T amplitudes. Many studies have been conducted to obtain amplitude QRS waves because they related ventricular depolarization, but values repolarization still rarely done, not even for clinical standard (12 leads). This study aims value in lead. Obtaining position on reference lead will also find other Each duration obtained fr...

Alteration in the release of female steroid hormones like progesterone and estrogen a systematic manner is due to periodic ovarian variation. The alteration causes physiological cardiovascular activities ultimately affects Electrocardiogram (ECG) parameters. : To analyze heart rate changes PR interval duration ST segment ECG during menstrual phases. investigate any change rate, different phases...