Table 5 Echocardiographic variables of all study participants before (pre), immediately after (post) and 14 days after (follow-up) the marathon

FS [%]

41.5 (37.0-46.5)

46.0 (40.9-52.0)

45.0 (37.0-50.0)

<0.001

0.001

MPI LV

0.46 (0.40-0.55)

0.47 (0.41-0.58)

0.44 (0.35-0.52)

0.116

0.018

Longitudinal 2D strain septal basal [%]

-17.8 (15.5-20.2)

-19.6 (16.3-22.8)

-18.6 (15.6-21.4)

<0.001

0.566

Peak systolic velocity septal basal S’[m/s]

0.07 (0.07-0.08)

0.09 (0.08-0.10)

0.08 (0.07-0.09)

<0.001

0.009

E [m/s]

0.80 (0.70-0.92)

0.67 (0.55-0.77)

0.81 (0.69-0.92)

<0.001

0.281

A [m/s]

0.60 (0.50-0.70)

0.69 (0.60-0.81)

0.60 (0.50-0.68)

<0.001

0.531

E/A

1.40 (1.10-1.60)

0.91 (0.76-1.20)

1.3 (1.10-1.67)

<0.001

0.768

E/E’

7.75 (6.63-9.43)

9.08 (7.41-11.08)

7.80 (6.87-9.15)

0.001

0.150

E’ septal [m/s]

0.10 (0.09-0.12)

0.09 (0.07-0.11)

0.10 (0.09-0.12)

<0.001

0.484

A’ [m/s]

0.09 (0.07-0.10)

0.11 (0.09-0.13)

0.09 (0.08-0.11)

<0.001

0.070

DT [ms]

187.0 (145.3-230.0)

130.0 (106.8-170.5)

177.0 (143.0-223.5)

<0.001

0.324

RVEDD [mm]

32.0 (29.0-38.0)

31.0 (28.0-35.5)

34.0 (30.0-38.0)

0.008

0.079

TAPSE [mm]

28.0 (26.0-31.0)

28.0 (25.0-29.0)

28.0 (25.0-30.0)

0.025

0.429

RV S’ [m/s]

0.11 (0.10-0.12)

0.11 (0.09-0.13)

0.11 (0.10-0.13)

0.958

0.325

MPI RV

0.53 (0.41-0.72)

0.50 (0.41-0.65)

0.48 (0.38-0.71)

0.196

0.004

Longitudinal TDI RV strain basal [%]

-24.8 (20.0-29.5)

-23.6 (18.8-29.5)

-26.0 (21.1-30.1)

0.681

0.197

Longitudinal TDI RV strain mid [%]

-32.6 (26.7-39.1)

-29.0 (22.5-34.5)

-32.0 (24.1-37.9)

<0.001

0.477

Longitudinal TDI RV strain apical [%]

-32.4 (24.5-32.8)

-26.9 (20.5-32.8)

-27.8 (21.7-35.9)

<0.001

0.020