however , when exercise heart rate at the time of appearance of ventricular arrhythmias was taken into account the incidence of exercise-induced ventricular arrhythmias up to a heart rate of 130/min was 27 % in the patients with documented coronary artery disease ( group ii ) compared with rates of 9 and 6 % , respectively , for groups ia and ib ( p less than 0.001 ) .
C0003811
arrhythmias
C0085612
ventricular arrhythmias