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has been cited by the following article:

• TITLE: Triangle Characters of Electrocardiogram for Distinguishing States between Exercise and Relaxation

  AUTHORS: Yanjun Li, Hong Yan, Jinzhong Song, Xinming Yu, Zongxiao Sun, Hua Wei

  KEYWORDS: Electrocardiogram (ECG); Exercise ECG; Exercise-Induced ECG Changes; Triangle QRS; Triangle T

  JOURNAL NAME: Engineering, Vol.5 No.10B, October 30, 2013

  ABSTRACT: Will exercise-induced cardiovascular workload be monitored by Electrocardiogram (ECG) waveform morphology? The discrimination ability of ECG morphology from 30 subjects was tested for distinguishing states between exercise and relaxation in terms of side lengths, lengths of high lines, angles, perimeters and areas of triangle QRS and triangle T. As a result, 4 characters from triangle QRS had significant differences (t test, p