## 4 Results  
The mean and SD of the subjects' age, height, BM, BMI, BF%, relative BF, FFM, 20 m speed test, T-test, height and relative power of jump tests (CMJ and CMJ-S), handgrip test, 2 kg MBT test, and game performance variables are presented in Table 2. \begin{table}
\begin{tabular}{l c c c c c c c} \hline \hline  & & \multicolumn{3}{c}{**95\% CI**} & \multicolumn{3}{c}{**F Test with True Value 0**} \\ \cline{3-8}
**Variables** & **ICC \({}^{\text{a}}\)** & & **Lower Bound** & **Upper Bound** & **Value** & **df1** & **df2** & \(p\) \\ \hline V20-m (s) & 0.859 & 0.456 & 0.941 & 23.243 & 347 & 347 & \textless{}0.001 \\ T-test (s) & 0.856 & 0.276 & 0.948 & 27.328 & 195 & 195 & \textless{}0.001 \\ CMJ height (cm) & 0.934 & 0.581 & 0.976 & 59.326 & 376 & 376 & \textless{}0.001 \\ CMJ rel. power (W/kg) & 0.932 & 0.610 & 0.975 & 54.988 & 304 & 304 & \textless{}0.001 \\ CMJ-S height (cm) & 0.944 & 0.526 & 0.982 & 80.571 & 376 & 376 & \textless{}0.001 \\ CMJ-S rel. power (W/kg) & 0.846 & 0.724 & 0.905 & 14.873 & 287 & 287 & \textless{}0.001 \\
2 kg MBT (m) & 0.921 & 0.407 & 0.974 & 56.344 & 385 & 385 & \textless{}0.001 \\ HG right hand (kg) & 0.960 & 0.664 & 0.987 & 107.427 & 172 & 172 & \textless{}0.001 \\ HG left hand (kg) & 0.962 & 0.772 & 0.986 & 95.822 & 173 & 173 & \textless{}0.001 \\ Sit and reach test (cm) & 0.952 & 0.437 & 0.985 & 108.977 & 381 & 381 & \textless{}0.001 \\ \hline \hline  & & & & & & & \\ \end{tabular}  
* Key: \({}^{\text{a}}\) ICC estimates and their 95\% confidence intervals were calculated based on a single measure, absolute agreement, two-way mixed-effects model. CI = confidence interval; CMJ = countermovement jump; CMJ-S = countermovement jump with arms swing; HG = handgrip; ICC = intraclass correlation coefficient; MBT = medicine ball throw; V20-m = 20 m speed test.  
\end{table} 
Table 1: Intraclass correlation statistics to assess intra-rater reliability in the fitness tests. \begin{table}
\begin{tabular}{l c c c c} \hline \hline  & \multicolumn{2}{c}{**Male Players**} & \multicolumn{2}{c}{**Female**} \\
**Variables** & \multicolumn{2}{c}{**(\(n\) = 166)**} & \multicolumn{2}{c}{**Players(\(n\) = 131)**} \\ \cline{2-5}  & **Mean** & **SD** & **Mean** & **SD** \\ \hline Basketball Experience (years) & 5.29 & \(\pm\)2.57 & 4.76 & \(\pm\)2.48 \\ CA (years) & 13.80 & \(\pm\)0.38 & 13.57 & \(\pm\)0.55 \\ YAPHV (years) & 0.53 & \(\pm\)0.76 & 1.64 & \(\pm\)0.61 \\ \hline Morphology & & & & \\ Body mass (kg) & 60.1 & \(\pm\)10.1 & 55.6 & \(\pm\)9.4 \\ Stature (cm) & 173.2 & \(\pm\)8.67 & 164.4 & \(\pm\)6.9 \\ BMI (kg/m\({}^{2}\)) & 19.90 & \(\pm\)2.27 & 20.47 & \(\pm\)2.58 \\ \%BF & 16.90 & \(\pm\)4.63 & 23.36 & \(\pm\)4.56 \\ BFI (kg/m\({}^{2}\)) & 3.44 & \(\pm\)0.10 & 4.86 & \(\pm\)0.13 \\ FFM (kg) & 49.72 & \(\pm\)7.22 & 42.30 & \(\pm\)5.55 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Morphological, fitness, and game performance descriptive statistics (mean \(\pm\) SD) of elite male and female U-14 Portuguese basketball players. Partial Correlations between Body Composition Indicators, Fitness Attributes, and Performance-Related Parameters  
The values of correlations between body composition indicators, fitness attributes, and performance-related indicators are presented in Table 3.