Table 5.

Correlation coefficients for demographic and anthropometric variables with P_Imax, P_Emax, and T_T0.1»

	Boys (n = 117)			Girls (n = 134)
	PImax	PEmax	TT0.1a, b	PImax	PEmax	TT0.1a, c
Age (years)	0.521***	0.498***	–0.484***	0.271**	0.324***	–0.394***
Body mass (kg)	0.500***	0.476***	–0.249*	0.322***	0.321***	–0.282**
Body height (cm)	0.487***	0.422***	–0.422***	0.271**	0.294**	–0.357***
Age from PHV (years)	0.524***	0.516***	–0.440***	0.294**	0.331***	–0.394***
BMI	0.374***	0.399***	–0.008	0.268**	0.246**	–0.135
BSA (m 2)	0.512***	0.477***	–0.301**	0.319***	0.321***	–0.303**
Body fat (%)	–0.032	–0.011	0.243*	0.109	0.042	0.066
FFM (kg)	0.537***	0.508***	–0.324**	0.330***	0.341***	–0.334***

BMI, body mass index; BSA, body surface area; FFM, fat-free mass; PHV, peak height velocity; P _Emax, maximal expiratory pressure; P _Imax, maximal inspiratory pressure;T _T0.1,tension time index.

^*p < 0.05;

^**p < 0.01;

^***p < 0.001.

^aCalculated as:T_T0.1,(P_0.1/P_Imax) ×(T_I/T_TOT).

^bIn this case, n = 103.

^cIn this case, n = 107.