Table 3.

Cardiopulmonary exercise test parameters before and after cardiac rehabilitation

	Group I (n=25)				Group II (n=25)				P for Δ comparison‡
	Before	After	Δ*	P†	Before	After	Δ*	P†
Peak VO2, mL.kg–1.min–1	21.3±7.0	23.5±7.6	2.2	0.001***	19.4±5.2	22.9±6.7	3.5	<0.001***	0.144
% of predicted peak VO2, %	78%±21%	87%±27%	9%	0.002**	72%±18%	87%±25%	15%	0.001***	0.242
Oxygen pulse (πO2), mL O2.kg-1.beat-1	17.5±4.7	18.1±4.2	0.5±2.4	0.252	16.1±3.4	19.1±4.8	2.9±3.3	<0.001***	0.007**
Circulatory power, mL.min.mm Hg.kg–1	3601±1455	4156±1560	555	0.001***	3262±1353	3923±1474	661	0.004**	0.680

^*∆ indicates the difference between post-cardiac rehabilitation minus pre-cardiac rehabilitation values in each group.

^**P<0.01;

^***P≤0.001;

^†Paired sample t test;

^‡Independent t test; Peak VO₂- Maximal oxygen consumption