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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