Fig. 2

Androgenic hormones regulate the duration of the AP. a Representative AP from all four groups (n = 8 rats per group). b Effect of androgenic hormone activity on AP variables (TTP time to peak, APD50 AP duration at 50 % of repolarization, APD90 AP duration at 90 % of repolarization, QT duration of QT interval measured from the beginning of the QRS complex to the end of the T wave). Asterisk Significantly different from control at p < 0.05. c Representative electrocardiography results for the four groups