Table 1.

Physical characteristics of subjects

Characteristic	Position				P-value
	Goalkeeper (n=7)	Defense (n=37)	Midfield (n=39)	Forward (n=18)
Age (yr)	16.0±1.6	16.1±1.3	15.8±1.3	15.8±1.4	0.743
Height (cm)	181.6±4.8	174.9±5.4	172.2±5.4*	172.8±7.2#	0.001**
Weight (kg)	71.6±9.1	65.7±6.5#	60.7±6.4*	64.1±8.8	0.001**
Career (yr)	5.3±2.5	5.7±1.7	6.1±1.6	5.3±2.6	0.440
Dominant foot (n)
Right	7	35	35	18
Left	0	2	4	0
Body mass index (kg/m2)	21.7±2.3	21.4±1.6	20.5±1.9	21.4±2.0	0.080

Values are presented as mean±standard deviation.

^*P<0.05, vs. goalkeeper.

^#P<0.05, vs. midfield.

^**P<0.01.