## 3 Results
### Differences in Physical Performance Variables Based on Maturity Status and Gender  
All subjects performed all exercise tests, and their physical performance results are summarized in Table 2. Our results revealed significant differences between the three maturity categories for all performance parameters (\(p<0.05\)), except for SJ height, CMJ height, SJ power, CMJ power, and 20 m sprints, both with and without the ball, for girls (see Table 2). Higher values for most physical parameters were observed in the late-maturing groups, indicating higher activity levels compared to average- or early-maturing groups. For example, faster sprint times over 5 m, 10 m, and 20 m, as well as better agility test results, were measured for the later-maturing players compared to the earlier-maturing players. Student's unpaired \(t\)-tests showed no significant sex differences in the early-maturing groups. \begin{table} \begin{tabular}{l l c c c c c c c} \hline \hline
**Maturity Status** & & **Early-Maturing** & \(p\)**Values \({}^{\star}\)** & \multicolumn{2}{c}{**On-Time-**} & \multicolumn{2}{c}{\(p\)**Values \({}^{\star}\)**} & \multicolumn{2}{c}{**Late-Maturing**} & \(p\)**Values \({}^{\star}\)** & \(p\)**Values \({}^{\star}\)** \\ \hline \multirow{2}{*}{Body fat percentage (\%)} & Boys & \({}^{\star}\)17.61 \(\pm\) 6.69 & 0.038 & \({}^{\star}\)14.83 \(\pm\) 4.38 & 0.001 & \({}^{\star}\)15.99 \(\pm\) 4.51 \(\pm\) & 0.002 & 0.006 \\  & Girls & \(16.38\) \(\pm\) 3.01 & & \(17.84\) \(\pm\) 2.42 & & 17.60 \(\pm\) 2.45 \(\ell\) & & 0.003 \\ \hline \multirow{2}{*}{Wing span (cm)} & Boys & \({}^{\star}\)161.28 \(\pm\) 10.12 & 0.042 & \({}^{\star}\)175.50 \(\pm\) 9.28 & 0.001 & \({}^{\star}\)192.07 \(\pm\) 8.87 \(\dagger\) & 0.001 & 0.001 \\  & Girls & \(161.35\) \(\pm\) 8.18 & & 168.53 \(\pm\) 7.09 & & 171.85 \(\pm\) 8.03 \(\ell\) & & 0.001 \\ \hline \multirow{2}{*}{Leg muscle volume (mL)} & Boys & \({}^{\star}\)3678.22 \(\pm\) 1473.80 & 0.040 & \({}^{\star}\)5451.95 \(\pm\) 2012.74 & 0.001 & \({}^{\star}\)5148.17 \(\pm\) 2036.57 \(\dagger\) & 0.036 & 0.001 \\  & Girls & \(3454.95\) \(\pm\) 1301.91 & & 4641.39 \(\pm\) 1926.49 & & 4544.82 \(\pm\) 1930.79 \(\ell\) & 0.001 \\ \hline \multirow{6}{*}{MW (km-h\({}^{-1}\))} & Boys & \({}^{\star}\)2.17 \(\pm\) 0.33 & 0.001 & \({}^{\star}\)2.01\(\pm\) 0.19 & 0.001 & \({}^{\star}\)1.97 \(\pm\) 0.24 \(\ell\) & 0.001 \\  & Girls & \(2.63\) \(\pm\) 0.45 & & 2.39 \(\pm\) 0.34 & & 2.27 \(\pm\) 0.14 \(\ell\) & & 0.001 \\ \hline \hline \end{tabular}  Note: Early-maturing (\(-\)3 years \(-\)1 years from PHY); on-time-maturing (\(-\)1 to +1 years from PHY); late-maturing (\(>\)1 to +3 years from PHY) \({}^{\star}\); Significant difference between early-maturing, on-time-maturing, and late-maturing boys (\(p<0.05\)). \({}^{\star\star\star}\); Significant difference between boys and girls in the same category; \({}  
Pearson's Correlation Coefficients Among Anthropometric and Physical Performance Parameters and Chronological Age  
Pearson's correlation coefficients were calculated to assess and measure the influence of the interaction between chronological age and anthropometric and vertical jumping parameters. Pearson's correlations of the anthropometric variables and chronological age in the basketball players are displayed in Table 3. Anthropometric variables were significantly and positively correlated with chronological age, except for body fat percentage in boys (r = \(-\)0.15; \(p\) < 0.05). The basketball players presented statistically significant correlation coefficients (\(p\) < 0.05) with all the measured physical and physiological parameters except the times for agility and the 5 m, 10 m, and 20 m sprints both with and without the ball, which correlated negatively with age (\(-\)0.275 < r < \(-\)0.09; \(p\) < 0.05) (Table 4).