Table 1. Subject Characteristics (Mean (SE)).

	Female				Male
	pre-pubertal (n=19)	Pubertal (n=21)	post-pubertal (n=20)	young adult (n=20)	pre-pubertal (n=19)	Pubertal (n=19)	post-pubertal (n=18)	young adult (n=20)
age (yrs)†‡	10.1 (0.3)	12.7 (0.2)	15.2 (0.2)	19.7 (0.2)	11.3 (0.3)	13.3 (0.3)	15.7 (0.3)	20.2 (0.2)
height (cm)	144.6(1.7)	155.8 (1.6)	164.6 (1.6)	167.0 (1.6)	147.1 (1.7)	161.9 (1.7)	175.8 (1.7)*	181.1 (1.6)*
weight (kg)	36.5 (1.7)	47.3 (1.6)	58.6 (1.7)	65.9(1.7)	36.7 (1.7)	51.8 (1.7)	69.2 (1.8)*	78.6 (1.7)*
experience (yrs)†‡	5.2 (0.3)	7.1 (0.4)	9.1 (2.0)	13.7 (2.1)	5.7 (1.3)	8.5 (0.4)	10.6 (0.6)	15.4 (2.0)

^*=significant difference between males and females

^†=significant main effects of sex

^‡= significant main effect of maturation