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Table 4 Comparison of our results with published normal values in healthy individuals

From: Increased longitudinal contractility and diastolic function at rest in well-trained amateur Marathon runners: a speckle tracking echocardiography study

Parameter Peak systolic strain(%) Peak systolic SR(1/s) Early diastolic SR(1/s) Late diastolic SR(1/s)
Athlete (n = 84) -23.0 ± 2.23 -1.39 ± 0.21 2.00 ± 0.40 1.21 ± 0.31
Control Marwick (n = 192) -18.6 ± 0.1 -1.1 ± 0.01 1.55 ± 0.01 1.02 ± 0.01
p < 0.001 < 0.001 < 0.001 < 0.001
Control HUNT study (n = 1266) -16.7 ± 4.1 -1.03 ± 0.27 no data no data
p < 0.001 < 0.001 - -