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Table 4 CMR parameters (EF, WMSI, LVESV, LVEDV, and LV volumes indexed to BSA) before and after the study

From: Impact of exercise training on myocardial contractile functions assessed by cardiac magnetic resonance in post-myocardial infarction patients

Variables

Time

Training group

(n = 16)

Control group (n = 10)

P value^

EF (%)

Before

36.6 ± 14.2

41.0 ± 10.6

0.412^

After

43.1 ± 12.4

37.2 ± 11.4

0.229^

Change

6.5 (2.3–9.0)

− 2.0 (− 6.8 to 1.3)

0.001*,$

P value#

 < 0.001*

0.212

 

WMSI

Before

2.03 ± 0.57

1.8 ± 0.4

0.220

After

1.7 ± 0.49

1.9 ± 0.5

0.264

Change

− 0.3 (− 0.5 to − 0.1)

0.1 (− 0.1 to 0.5)

0.001*,$

P value#

 < 0.001*

0.331

 

LVESV (mL)

Before

79.6 ± 39.8

82.2 ± 28.0

0.858^

After

72.6 ± 35.0

89.9 ± 35.4

0.233^

Change

− 1.5 (− 25.5 to 9.7)

11.4 (− 13.8 to 28.3)

0.135$

P value#

0.255

0.44

 

LVEDV (mL)

Before

119.9 ± 40.8

135.8 ± 39.6

0.336

After

122.8 ± 43.1

139.7 ± 34.4

0.306

Change

17.6 (− 37.6 to 36.8)

2.5 (− 37.0 to 44.8)

0.816

P value#

0.918

0.64

 

LVESV indexed to BSA

( mL/m2)

Before

40.4 ± 19.8

41.4 ± 13.9

0.894

After

36.7 ± 16.6

45.4 ± 18.6

0.228

Change

− 0.5 (− 14.0 to 5.3)

5.1 (− 6.9 to 13.8)

0.150$

P value#

0.215

0.386

 

LVEDV indexed to BSA

( mL/m2)

Before

61.2 ± 20.5

67.9 ± 16.9

0.393

After

62.2 ± 19.1

70.6 ± 18.6

0.281

Change

9.1 (− 20.3 to 15.6)

1.5 (− 18.1 to 23.4)

0.660$

P value#

0.836

0.575

 
  1. Before and after Data presented as Mean ± SD, while change data presented as Median (1st − 3rd IQ). ^Independent t test. $Mann Whitney test. #Wilcoxon signed rank test. *Significant