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Table 2 Echocardiographic parameters in sedentary control rats (C, n = 8); trained control rats (TC, n = 8); sedentary rats submitted to myocardial infarction (I, n = 9), trained rats submitted to myocardial infarction (TI, n = 10)

From: Cardioprotection afforded by exercise training prior to myocardial infarction is associated with autonomic function improvement

Parameters/Groups

C

TC

I

TI

Morphometric

    

MI area (%)

----

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45 ± 3

42 ± 2

LVmass (g)

1.11 ± 0.03

1.62 ± 0.05*

1.14 ± 0.05

1.65 ± 0.11*†

LVDD (cm)

0.72 ± 0.02

0.74 ± 0.03

0.74 ± 0.02

0.76 ± 0.03

RWT

0.40 ± 0.01

0.53 ± 0.03*

0.29 ± 0.01*

0.51 ± 0.03*†

Systolic Function

    

FS (%)

39 ± 1

41 ± 3

30 ± 2*

38 ± 1†

EF (%)

70.2 ± 0.9

76.1 ± 0.3*

41.2 ± 1.1*

52.4 ± 0.4*†

Diastolic Function

    

E/A

1.61 ± 0.11

1.67 ± 0.01

2.76 ± 0.20*

1.81 ± 0.11†

IVRT (ms)

29 ± 1

27 ± 1

29 ± 1

28 ± 3

Global Function

    

MPI

0.37 ± 0.03

0.15 ± 0.02*

0.48 ± 0.03*

0.18 ± 0.04*†

  1. Values are expressed as mean ± SEM. LVmass - left ventricular mass; LVDD - left ventricular end-diameter during diastole; RWT – relative wall thickness; FS – fractional shortening; EF – ejection fraction; E/A – E wave A wave ratio; IVRT- left ventricular isovolumetric relaxation time; MPI – myocardial performance index. ANOVA two-way (exercise training and myocardial infarction) analysis followed by the Bonferroni post-test. *p < 0.05 vs. C; †p < 0.05 vs. I.
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BMC Cardiovascular Disorders

ISSN: 1471-2261

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