Peak oxygen consumption , 6 min walk distance , NYHA class and quality of life scores improved after biventricular pacing , but no significant difference was found between the two modes , with the exception of peak oxygen consumption score ( baseline : 14.8 0.9 , Mode 1 : 14.6 1.2 , Mode 2 : 16.1 1.2 mL/kg/min ) , which was better in Mode 2 than Mode 1 ( p 0.003 ) .
