## 3 Results  
This section presents the findings of a one-way ANOVA to evaluate differences among three age groups (G1, G2, and G3) across various variables. The analyses included demographic measures such as age, weight, height, BMI, and active time. Workload metrics were examined, including sRPE, accumulated acceleration load, mechanical load, jump load, and total number of jumps. Additionally, performance-related variables such as total distance covered and distance traveled within speed zones were analyzed. The correlation between active time and MVPA was also examined. Physical activity metrics were also assessed, encompassing minutes spent in No PA, Low PA, Moderate PA, Vigorous PA, and MVPA. _Figures, Tables, and Schemes_  
Significant differences were observed in weight, height, and BMI across the three age groups, with F(2, 177) = 8.449, \(p\) < 0.01, and F(2, 177) = 4.403, \(p\) = 0.014, respectively (Table 1). Post hoc analyses using the Bonferroni correction revealed that participants of G1 had significantly higher weights than those of G2 (\(p\) < 0.01) and G3. However, there was no significant difference in weight between G2 and G3. The G1 had a significantly higher BMI than the G2 (\(p\) < 0.05) groups, but not G3. No significant differences in BMI were observed between G2 and G3. No significant differences in active time among the groups (F(2, 177) = 1.987, \(p\) = 0.140) and in height (F(2, 177) = 56.455, \(p\) = 0.40) between groups were observed. Accumulated acceleration load, mechanical load, jump load, and total jumps differed significantly across the three age groups, with F(2, 177) = 74.343, \(p\) < 0.001, F(2, 177) = 42.958, \(p\) < 0.001, F(2, 177) = 12.767, \(p\) < 0.001, and F(2, 177) = 9.464, \(p\) < 0.001, respectively (Table 2). Post hoc analyses using the Bonferroni correction revealed that participants in the G1 age group demonstrated significantly higher accumulated acceleration load, mechanical load, jump load, and total jumps compared to both the G2 and G3 age groups (\(p\) < 0.01). Additionally, the G2 age group exhibited significantly higher values for these metrics compared to the G3 age group (\(p\) < 0.01). No significant differences were observed in sRPE among the age groups (F(2, 177) = 0.555, \(p\) = 0.577). Total distance and distances covered within speed zones 2, 3, and 4 showed significant differences across the three age groups, with F(2, 177) = 60.627, \(p\) < 0.01, F(2, 177) = 55.643, \(p\) < 0.01, F(2, 177) = 52.615, \(p\) < 0.001, and F(2, 177) = 36.575, \(p\) < 0.01, respectively (Table 3). Post hoc analyses using the Bonferroni correction revealed that participants in the G1 age group covered significantly greater total distances and covered more within each speed zone compared to participants in the G2 and G3 age groups (\(p\) < 0.01). Furthermore, the G2 age group covered significantly greater distances in these metrics compared to the G3 age group (\(p\) < 0.01). No significant differences were observed in distance covered within speed zone 1 among the age groups (F(2, 175) = 0.280, \(p\) = 0.756). \begin{table}
\begin{tabular}{c c c c c c} \hline
**Workload Metrics** & **G1 (n = 48)** & **G2 (n = 70)** & **G3 (n = 60)** & **F(2, 177)** & \(p\)** \\ \hline sRPE (AU) & 184.32 \(\pm\) 99.60 & 201.24 \(\pm\) 118.96 & 183.78 \(\pm\) 95.91 & 0.555 & 0.575 \\ Accumulated Acceleration & 11.35 \(\pm\) 2.27 & 7.95 \(\pm\) 1.94 * & 6.74 \(\pm\) 1.86 *\# & 74.343 & 0.000 \\ Load (AU/min) & 27.45 \(\pm\) 3.58 & 22.24 \(\pm\) 4.80 * & 19.75 \(\pm\) 4.34 *\# & 42.958 & 0.000 \\ Jump Load (AU/min) & 109.62 \(\pm\) 51.49 & 74.33 \(\pm\) 51.97 * & 58.42 \(\pm\) 55.52 * & 12.767 & 0.000 \\ Total Jumps (Events/min) & 0.42 \(\pm\) 0.17 & 0.31 \(\pm\) 0.19 * & 0.25 \(\pm\) 0.22 * & 9.464 & 0.000 \\ \hline \end{tabular}  
* Data are presented as means \(\pm\) SD.
* Significant difference between G1 and G2, + Significant difference between G1 and G3, and # Significant difference between G2 and G3.  
\end{table} 
Table 2: Workload metrics among age groups.