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Table 3 CMR measured strain parameters

From: Relationship between cardiac deformation parameters measured by cardiovascular magnetic resonance and aerobic fitness in endurance athletes

 

Athlete

Control

P value

LV Circumferential Strain

   

 Apex, %

18.4 ± 5.2

23.4 ± 4.9

<0.001

 Mid LV, %

19.6 ± 3.9

21.5 ± 2.5

0.02

 Base, %

17.0 ± 4.0

20.5 ± 2.5

<0.001

 Systolic SR, %/s

115.3 ± 12.8

116.6 ± 10.0

0.66

 Early diastolic SR,%/s

50.8 ± 16.4

51.0 ± 16.0

0.95

 Late diastolic SR, %/s

140.1 ± 40.7

151.4 ± 40.3

0.27

Torsion

   

 LV twist, o

9.7 ± 3.6

13.3 ± 3.8

<0.001

 LV torsion, o

8.8 ± 3.0

11.9 ± 3.1

<0.001

 LV twist rate, o/s

63.2 ± 18.9

72.4 ± 27.8

0.048

 LV untwist rate, o/s

88.1 ± 25.5

101.8 ± 34.5

0.07

LV Longitudinal Strain

   

 Peak, %

17.1 ± 2.8

17.7 ± 2.3

0.30

 SSR, %/s

101.6 ± 29.6

103.2 ± 19.8

0.29

 EDSR, %/s

90.6 ± 32.4

102.4 ± 31.7

0.13

 LDSR, %/s

41.7 ± 15.6

57.3 ± 19.6

<0.001

RV Longitudinal Strain

   

 Peak, %

19.8 ± 3.7

22.6 ± 3.4

0.002

 SSR, %/s

137.7 ± 49.9

138.4 ± 37.0

0.50

 EDSR, %/s

108.6 ± 32.1

124.6 ± 32.9

0.03

 LDSR, %/s

69.2 ± 40.2

89.5 ± 42.4

0.02