TABLE 2.

Descriptive and inferential analysis of physical and game-related variables and blocks, according to the age groups and established clusters (Mean ± SD).

Blocks	Variables	BOYS				GIRLS				Magnitude-based inferences
		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
Physical	20m (s)	3.7 ± 0.2	3.6 ± 0.3	3.3 ± 0.2	3.2 ± 0.2	3.8 ± 0.1	3.8 ± 0.6	3.6 ± 0.1	3.7 ± 0.1	0.27 [−0.34; 0.88]	0.51 [−0.02; 1.05]	−0.02 [−1.00; 0.95]	−0.32 [−0.88; 0.25]
	T-test (s)	11.3 ± 0.6	11.4 ± 0.9	10.3 ± 0.6	9.9 ± 0.6	12.4 ± 0.5	11.8 ± 0.7	11.3 ± 0.5	11.6 ± 0.6	−0.16 [−0.78; 0.45]	0.50 [−0.03; 1.30]	0.89 [0.07; 1.70]	−0.48 [−1.05; 0.08]
	ABA (cm)	29.4 ± 6.2	30.0 ± 5.9	38.4 ± 5.8	39.9 ± 5.3	26.5 ± 2.4	26.2 ± 4.0	27.8 ± 3.1	26.5 ± 4.5	−0.11 [−0.67; 0.44]	−0.27 [−0.81; 0.27]	0.17 [−0.63; 0.96]	0.41 [−0.16; 0.98]
	HJ (cm)	162.8 ± 21.6	162.1 ± 21.4	198.7 ± 21.7	211.2 ± 23.1	150.7 ± 12.1	148.6 ± 18.2	152.7 ± 10.0	154.6 ± 16.2	0.02 [−0.53; 0.58]	−0.52 [−1.05; 0.01]	0.17 [−0.63; 0.96]	−0.10 [−0.68; 0.47]
Game-related statistics	Points (n)	7.8 ± 7.2	12.2 ± 11.8	6.8 ± 7.8	11.2 ± 11.0	9.6 ± 11.7	14.4 ± 12.9	9.8 ± 10.4	8.7 ± 7.4	0.01 [−0.68; 0.69]	−0.39 [−0.97; 0.19]	−0.27 [−1.36; 0.82]	−0.05 [−0.69; 0.80]
	Field goals (n)	3.3 ± 2.0	4.0 ± 3.1	3.0 ± 2.2	3.8 ± 2.8	3.4 ± 2.2	3.4 ± 2.2	3.6 ± 1.9	3.1 ± 1.8	−0.06 [−0.64; 0.52]	−0.22 [−0.76; 0.32]	−0.68 [−1.92; 0.56]	0.44 [−0.14; 1.02]
	Rebounds (n)	7.2 ± 6.3	9.9 ± 8.3	6.7 ± 5.6	9.9 ± 6.1	9.1 ± 4.7	13.4 ± 9.4	8.1 ± 6.5	9.9 ± 6.7	−0.51 [−1.10; 0.08]	−0.73 [−1.30; −0.16]	−0.30 [−1.15; 0.55]	−0.23 [−0.84; 0.38]
	Ast:TO (a.u.)	0.2 ± 0.3	0.1 ± 0.2	0.2 ± 0.3	0.4 ± 1.1	0.1 ± 0.1	0.2 ± 0.4	0.2 ± 0.3	0.2 ± 0.5	−1.32 [0.39; 2.26]	0.12 [−0.81; 1.04]	−0.85 [−1.96; 0.25]	−0.10 [−0.97; 0.77]
	Stl:TO (a.u.)	0.8 ± 1.5	0.5 ± 0.7	0.5 ± 0.5	1.0 ± 1.5	0.3 ± 0.3	0.9 ± 0.8	0.9 ± 1.0	0.9 ± 1.3	0.13 [−0.56; 0.82]	−0.62 [−1.22; −0.02]	−0.81 [−1.80; 0.18]	0.03 [−0.60; 0.66]

Abbreviations: 20m, 20 meters’ sprint time; T-test, agility t-test; ABA, Abalakov vertical jump; HJ, horizontal jump; Ast:TO, assist per turnover ratio; Stl:TO, steal per turnover ratio; 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.