Table 5.

Echocardiographic left ventricular measures before and after training

	Football (n = 78)		p*	Crew (n = 68)		p*
	Pre-season	Post-season		Pre-season	Post-season
LV function
LVEF	64.9% ± 6.7%	65%± 6.6%	0.757	60.2 5.5	59.8 5.4%	0.42
LV mass measurements
LV mass	222.5 ± 28.6	248.1 ± 35.3	<0.001	217.5 ± 33.1	242.2 ± 34.7	<0.001
LV mass index	98.8 ± 13.6	109.0 ± 15.0	<0.001	104.9 ± 12.4	116.9 ± 13.3	<0.001
IVS	9.4 ± 0.8	10.7 ± 1.0	<0.001	9.9 ± 1.1	10.6 ± 1.2	<0.001
IVS index	4.2 ± 0.5	4.7 ± 0.6	<0.001	4.8 ± 0.6	5.1 ± 0.7	<0.001
PWT	9.9 ± 0.9	11.1 ± 1.0	<0.001	10.1 ± 1.0	10.7 ± 1.1	<0.001
PWT index	4.4 ± 0.6	4.9 ± 0.7	<0.001	4.9 ± 0.6	5.2 ± 0.6	<0.001
LV size/volume measurements
LVIDd	51.4 ± 3.7	51.9 ± 3.7	0.26	53.8 ± 4.5	55.7 ± 4.4	<0.001
LVIDd index	22.9 ± 2.2	22.9 ± 2.3	0.954	26.1 ± 2.3	27.0 ± 2.2	<0.001
LVEDV	147.3 ± 21.0	145.6 ± 24.2	0.277	166.8 ± 27.6	183.7 ± 26.5	<0.001
LVEDV index	65.5 ± 10.2	64.0 ± 10.2	0.042	80.5 ± 11.3	88.7 ± 11.1	<0.001
Composite measurements
Relative wall thickness	0.37 ± 0.042	0.42 ± 0.050	<0.001	0.37 ± 0.039	0.38 ± 0.046	0.006

LV: left ventricle, IVS: interventricular septal thickness, PWT: posterior wall thickness, IDd: internal dimension in diastole, IDs: internal dimension in systole, EDV: end diastolic volume,

^*compared to preseason within a sport using a paired-sample T test.