Table 4.

Cardiovascular performance based on physical activity regimen.

	Bout < 20 min (N = 62)		Bout ≥ 20 min (N = 30)		P-values (time effect)	P-values (time × group interaction)
	Baseline	Week 12	Baseline	Week 12
LV systolic elastance (Ees)	3.2 ± 0.8	3.0 ± 0.7	3.0 ± 0.6	3.0 ± 0.6	0.28	0.17
Ea over Ees	0.39 ± 0.08	0.38 ± 0.09	0.38 ± 0.08	0.37 ± 0.06	0.10	0.72
Arterial elastance (normalized) (mm Hg/ml)	1.25 ± 0.42	1.15 ± 0.39	1.14 ± 0.37	1.11 ± 0.30	0.03	0.27
Mitral annular early diastolic velocity (average septal/lateral)a	6.3 ± 1.5	6.3 ± 1.5	6.7 ± 2.0	6.4 ± 1.8	0.57	0.93
E/A	1.3 ± 0.5	1.2 ± 0.4	1.3 ± 0.3	1.4 ± 0.4	0.91	0.018
Ratio of mitral passive inflow velocity and E′b	11.5 ± 3.3	11.7 ± 4.0	10.7 ± 4.9	10.9 ± 3.7	0.41	0.93
Myocardial performance index	0.29 ± 0.06	0.29 ± 0.06	0.28 ± 05	0.28 ± 0.05	0.88	0.82
	10,000 < steps (N = 75)		10,000 ≥ 20 steps (N = 27)
LV systolic elastance	3.1 ± 0.7	3.0 ± 0.6	3.1 ± 0.8	3.0 ± 0.7	0.22	0.53
Ea over Ees	0.39 ± 0.08	0.38 ± 0.08	0.38 ± 0.08	0.37 ± 0.07	0.05	0.55
Arterial elastance (normalized)	1.25 ± 0.42	1.15 ± 0.36	1.17 ± 0.40	1.12 ± 0.35	0.02	0.37
Mitral annular early diastolic velocity (average septal/lateral)c	6.5 ± 1.7	6.4 ± 1.6	6.5 ± 1.9	6.5 ± 1.8	0.71	0.81
E/A	1.3 ± 0.4	1.3 ± 0.4	1.2 ± 0.4	1.2 ± 0.4	0.62	0.62
Ratio of mitral passive inflow velocity and E′d	11.3 ± 3.2	11.5 ± 3.7	12.0 ± 5.5	12.0 ± 4.8	0.55	0.75
Myocardial performance index	0.29 ± 0.06	0.29 ± 0.06	0.29 ± 0.05	0.28 ± 0.05	0.70	0.95
	MPA < 30 min (N = 51)		MPA ≥ 30 min (N = 40)
LV systolic elastance	3.2 ± 0.8	3.0 ± 0.7	2.9 ± 0.6	3.0 ± 0.6	0.14	0.09
Ea over Ees	0.39 ± 0.09	0.39 ± 0.09	0.38 ± 0.07	0.37 ± 0.06	0.10	0.60
Arterial elastance (normalized)	1.28 ± 0.44	1.18 ± 0.40	1.12 ± 0.34	1.08 ± 0.30	0.01	0.25
Mitral annular early diastolic velocity (average septal/lateral)e	6.4 ± 1.7	6.3 ± 1.7	6.6 ± 1.8	6.7 ± 1.7	0.78	0.52
E/A	1.4 ± 0.5	1.2 ± 0.4	1.2 ± 0.3	1.3 ± 0.4	0.65	0.003
Ratio of mitral passive inflow velocity and E′f	11.6 ± 3.5	11.9 ± 4.2	10.9 ± 4.3	10.9 ± 3.6	0.40	0.54
Myocardial performance index	0.29 ± 0.06	0.29 ± 0.07	0.29 ± 0.05	0.29 ± 0.05	0.83	0.77

Bold values indicate significance at P < 0.05.

^aN = 61 and 30, respectively

^bN = 61 and 29, respectively

^cN = 74 and 27, respectively

^dN = 74 and 26, respectively

^eN = 50 and 41, respectively

^fN = 50 and 40, respectively