Preventive fraction of physical fitness on risk factors in cardiac patients: Retrospective epidemiological study

Table 2 Characteristics of subjects for each of models

Variables (units)	Modela		P value	Modelb		P value
	Group 1a(n = 143)	Group 2a(n = 106)		Group 1b(n = 64)	Group 2b(n = 185)
Gender (males/females)	101/42	104/2	-	39 / 25	166 / 19	-
Age (yr)	64.7 ± 11.0	58.0 ± 10.8	0.001	66.2 ± 11.7	60.3 ± 10.9	0.001
Weight (kg)	77.2 ± 14.8	80.7 ± 16.6	0.090	75.0 ± 15.1	80.0 ± 15.7	0.030
Height (cm)	167.8 ± 9.1	172.7 ± 6.8	0.001	166.3 ± 8.1	171.2 ± 8.3	0.001
Body Mass Index (kg/m2)	27.8 ± 4.2	27.0 ± 5.0	0.500	27.0 ± 4.3	27.2 ± 4.7	0.700
Pmax during exercise stress test (W)	118.0 ± 39.1	95.8 ± 25.7	0.001	128.3 ± 45.0	101.7 ± 29.1	0.001
Pmax predicted (W)	150.8 ± 46.9	190.0 ± 40.3	0.001	139.5 ± 49.9	177.2 ± 43.7	0.001
V·O2 peak during exercise stress test (mL/kg/min)	23.6 ± 5.1	20.0 ± 3.5	0.001	25.5 ± 5.5	20.9 ± 4.0	0.001
V·O2 peak predicted (mL/kg/min)	23.4 ± 4.7	27.8 ± 4.6	0.001	22.4 ± 4.6	26.2 ± 4.9	0.001
METs peak during exercise stress test	6.8 ± 1.5	5.7 ± 1.0	0.001	7.3 ± 1.6	6.0 ± 1.1	0.001
Physical fitness (% predicted V·O2 peak)	102.2 ± 17.6	72.6 ± 8.1	0.001	115.2 ± 19.2	80.8 ± 11.7	0.001

Model^a-group 1^a: Patients with a normal physical fitness level; Model^a-group 2^a: Patients with a poor physical fitness level; Modelb-group 1b: Patients with a high physical fitness level; Model^b-group 2^b: Patients with a low physical fitness level. P_max: Maximal power; V·O₂: Maximal oxygen consumption; METs : Metabolic equivalents of task.