Table 1. Clinical characteristics.

		pre training			post training
	Elite runners	Non-elite runners	p	Elite runners	Non-elite runners	p
demographic data
age (years)	40.0±1.7	40.1±1.4	0.953
training parameters
BMI	23.3±0.55	24.1±0.42	0.222	22.8±0.55	23.7±0.45	0.213
resting heart rate (/min.)	50.5±2.39	61.5±2.85	0.006 **	50.1±2.09	58.1±2.36	0.018 *
km per week	73.9±3.86	33.9±2.72	0.000007 ***
IAT (km/h)	13.4±0.36	11.9±0.25	0.001 **	13.6±0.363	12.4±0.25	0.011 *
heart rate at IAT (/min.)	168.7±2.97	167.1±2.54	0.675	167.4±2.91	164.9±2.05	0.494
lactat (mmol/l)	2.8±0.156	3,09±0.199	0.187	2.6±0.12	2.8±0.19	0.520
systolic blood pressure (mmHg)	127.3±2.48	127.7±3.93	0.943	128.0±2.79	132.0±3.44	0.375
diastolic blood pressure (mmHg)	79.0±1.11	79.0±2.14	1.000	83.0±1.88	85.7±2.17	0.361
Echocardiography
Ejection fraction (%)	65.9±1.04	59.6±4.58	0.252	65.8±0.94	60.0±4.55	0.513
LA diameter (mm)	38.9±1.26	35.5±2.69	1.000	38.1±1.28	35.1±2.72	0.871
LVEDD (mm)	50.2±1.05	46.9±3.50	0.796	49.2±1.18	46.5±3.60	0.568
posterior wall thickness (mm)	11.5±0.34	9.5±0.88	0.181	12.5±0.46	10.7±0.91	0.905
E wave velocity (cm/s)	83.7±3.26	73.0±6.57	0.189	82.1±4.06	69.8±6.55	0.130
A wave velocity (cm/s)	46.3±2.59	44.2±4.26	0.588	54.7±3.13	47.5±4.41	0.385
E/E‘ ratio	7.8±0.26	7.0±0.67	0.838	8.7±0.30	7.5±0.67	0.285

BMI: body mass index.

km: kilometer.

IAT: individual aerobic threshold.

LA: left atrium.

LVEDD: left ventricular end-diastolic diameter.

*p<0.05

**p<0.01

***p<0.001 elite vs. non-elite runners.