TABLE 1.

Descriptive and inferential analysis of anthropometrical and maturational variables and blocks, according to the age groups and established clusters (Mean ± SD).

		BOYS				GIRLS				Magnitude-based inferences
Blocks	Variables	U-13		U-15		U-13		U-15		U-13	U-15	U-13	U-15
		Pre-PHV C1 (n = 29)	Mid-PHV C2 (n = 21)	Mid-PHV C3 (n = 27)	Post-PHV C4 (n = 27)	Mid-PHV C1 (n = 7)	Post-PHV C2 (n = 22)	Post-PHV C3 (n = 17)	Post-PHV C4 (n = 35)	Boys C1–C2	Boys C3–C4	Girls C1–C2	Girls C3–C4
Anthropometrical	CA (y)	12.7 ± 0.6	13.2 ± 0.4	14.7 ± 0.6	14.9 ± 0.5	12.1 ± 0.6	12.9 ± 0.6	13.9 ± 0.8	14.7 ± 0.6
	Height (cm)	154.4 ± 4.7	166.7 ± 4.7	167.6 ± 8.5	178.7 ± 5.8	153.7 ± 5.9	162.8 ± 4.9	158.3 ± 2.4	166.7 ± 5.5
	Body mass (kg)	42.8 ± 6.2	57.9 ± 8.9	54.4 ± 5.2	68.6 ± 5.0	38.1 ± 4.2	57.8 ± 9.9	52.3 ± 4.7	62.3 ± 6.7
	%BF (%)	12.7 ± 4.7	15.2 ± 6.0	10.3 ± 2.7	13.2 ± 3.8	16.9 ± 4.3	26.9 ± 7.2	24.5 ± 4.4	27.0 ± 5.5
Maturational	MO (y)	−2.2 ± 1.0	−0.5 ± 0.4	0.2 ± 1.0	1.2 ± 0.5	−0.2 ± 0.5	1.2 ± 0.4	1.4 ± 0.4	2.3 ± 0.4	−2.41** [−3.01;−1.81]	−0.72** [−1.41;−0.03]	−2.10** [−21.81; 17.61]	−2.11** [−2.90;−1.31]
	APHV (y)	14.9 ± 1.1	13.7 ± 0.5	14.4 ± 0.9	13.7 ± 0.4	12.3 ± 0.3	11.7 ± 0.4	12.5 ± 0.4	12.3 ± 0.4	1.60** [1.00; 2.21]	1.06 [0.44; 1.68]	1.58** [0.78; 2.39]	0.32 [−0.28; 0.92]
	PAH (cm)	183.7 ± 4.3	187.3 ± 3.2	180.4 ± 5.9	185.9 ± 4.9	169.1 ± 4.8	169.3 ± 4.9	162.9 ± 4.2	168.6 ± 5.4	−0.99 [−1.57; −0.41]	−1.00 [−1.54; −0.46]	−0.02 [−0.90; 0.86]	−1.14** [−1.71;−0.58]

Note: **p < 0.01. Abbreviations: CA, chronological age; MO, maturity offset; APHV, age of peak height velocity; PAH, predicted adult height; %BF, body fat; C1, Cluster 1; C2, Cluster 2; C3, Cluster 3; C4, Cluster 4. Cohen’s “d” units, and threshold values were: 0–0.2 trivial; >0.2–0.6 small; >0.6–1.2 moderate; >1.2–2.0 large; and >2.0.