Scaling left ventricular mass in adolescent female soccer players

BMC Pediatrics

Table 1 Descriptive statistics and correlations between chronovariables, size and echocardiograph parameters (n = 228)

Variable	unit	descriptive statistics					normality (Kolmogorov-Smirnov)		correlations
		range (min; max)	mean		standard deviation	f	normality (Kolmogorov-Smirnov)		CA		SA		training experience
		range (min; max)	value	(95% CI)	standard deviation	f	value	p	r	p	r	p	r	p
Training experience	years	(2; 9)	5.3	(5.0 to 5.5)	2.1		0.149	< 0.01
Chronological age	years	(11.84; 17.05)	14.63	(14.49 to 14.77)	1.11		0.076	< 0.01
Skeletal age^a	years	(11.46; 17.92)	15.28	(15.04 to 15.53)	1.54		0.067	0.07
Skeletal maturity:
delayed	f					25
average	f					51
advanced	f					87
mature	f					65
Stature	cm	(136.0; 182.2)	161.3	(160.4 to 162.2)	6.8		0.056	0.08	0.192	< 0.05	0.241	< 0.01
Body surface area	m²	(1.07; 2.05)	1.59	(1.57 to 1.61)	0.2		0.057	0.07	0.209	< 0.01	0.413	< 0.01
Body mass	kg	(29.5; 101.0)	56.7	(55.2 to 58.1)	11.0		0.090	< 0.01	0.176	< 0.01	0.405	< 0.01
Fat mass	%	(7.5; 51.6)	25.4	(24.4 to 26.4)	7.7		0.075	< 0.01			0.230	< 0.01	−0.148	< 0.05
	kg	(3.3; 51.4)	15.0	(14.0 to 16.0)	7.5		0.165	< 0.01			0.292	< 0.01
Fat-free mass	kg	(26.2; 62.5)	41.7	(40.9 to 42.5)	5.8		0.051	0.20	0.213	< 0.01	0.391	< 0.01
LVIDd	mm	(28.9; 56.1)	45.2	(44.7 to 45.7)	3.6		0.077	< 0.01			0.242	< 0.01
ISWTd	mm	(5.4; 10.2)	7.7	(7.6 to 7.8)	0.9		0.064	0.03			0.203	< 0.01	0.288	< 0.01
PWTd	mm	(5.0; 9.6)	7.5	(7.4 to 7.6)	0.8		0.097	< 0.01					0.249	< 0.01
LVM	g	(50; 185)	107	(104 to 110)	22		0.049	0.20	0.131	< 0.05	0.274	< 0.01	0.222	< 0.01
LVM index	g.m⁻²	(33; 107)	67	(66 to 69)	11		0.023	0.20					0.286	< 0.01

CA Chronological age, SA Skeletal age, f frequency, LVIDd Left ventricular internal dimension at end of the diastole, ISWTd Interventricular septal wall thickness at end of the diastole, PWTd Posterior wall thickness at end of the diastole, LVM Left ventricular mass, LV index Left ventricular mass index = LVM / body surface area, f Absolute frequency, 95% CI (95% confidence intervals)
^an = 163; players classified as skeletally mature (n = 65) were not considered in the analysis

ISSN: 1471-2431