## 3 Results
### Inter-Limb Asymmetry  
No statistically significant differences in inter-limb asymmetries were found between the analyzed WKF age categories. The results of the descriptive statistics of the mean differences in the inter-limb PVF performance due to varied conditions (EXP; CTRL) and time points (pre-test; post-test) are presented in Table 4. It was found that in the athletes from the U16 and U18 age categories, the inter-limb PVF asymmetry significantly decreased after the komite bout. This effect was not observed in the Seniors, in whom the analyzed value increased after the EXP condition (Table 4). On the other hand, the CTRL condition showed an increase in the inter-limb PVF asymmetry after treadmill walking in all the studied groups. Statistical analyses performed with [PERSON]'s test indicated a statistical significance in the mean difference in the PVF between the dominant and non-dominant lower limbs (test = 10.8; \(p\) = 0.013; [PERSON]'s W = 0.059). The pairwise comparison between the analyzed data pointed to a significantly higher inter-limb asymmetry in the PVF in the pre-test for the EXP condition (\(p\) = 0.14; ES = 0.32) in comparison to the values obtained in the CTRL \begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline
**Condition** & **EXP\_PRE** & **EXP\_POST** & **ES** & \(\Delta\) [\%] & **CTRL\_PRE** & **CTRL\_POST** & **ES** & \(\Delta\) [\%] \\ \hline \multirow{4}{*}{U16 (\(n\) = 20)} & **Inter-limb** & **Inter-limb** & \multirow{4}{*}{**Pre vs.**} & **Inter-limb** & **Inter-limb** & \multirow{4}{*}{**Inter-limb**} & \multirow{4}{*}{**Pre vs.**} & \\  & **PVF** & **PVF** & & & & **PVF** & & \\ \cline{1-1}  & **Difference [N]** & **Difference [N]** & **Post** & & & **Difference [N]** & **Difference [N]** & **Pre vs.** & \\ \cline{1-1}  & **(Mean, SD, **95\% CD**) & **(Mean, SD, **95\% CD**)** & & & & **Mean, SD,**95\% CD**) & & **Post** & \\ \hline \multirow{2}{*}{U16 (\(n\) = 19)} & \multirow{2}{*}{\(11.0\pm 91.2\)} & \(94.7\pm 83.7\) & \multirow{2}{*}{\(0.18\pm 1\)} & \multirow{2}{*}{\(-14.68\pm 8.22\)} & \multirow{2}{*}{\(121.0\pm 124.0\)} & \multirow{2}{*}{\(154.0\pm 81.8\)} & \multirow{2}{*}{\(-0.38\pm 27.27\pm 34.03\)} \\  & (70.7 to 151) & (58.0 to 131) & & & & (66.1 to 175.0) & (118 to 189) & \\ \hline \multirow{2}{*}{U18 (\(n\) = 19)} & \multirow{2}{*}{\(163.0\pm 153.0\)} & \multirow{2}{*}{\(91.9\pm 62.8\)} & \multirow{2}{*}{\(0.42\pm 7\)} & \multirow{2}{*}{\(-43.62\pm 58.95\)} & \multirow{2}{*}{\(95.1\pm 86.0\)} & \multirow{2}{*}{\(168.0\pm 129.0\)} & \multirow{2}{*}{\(-0.63\pm 7\)} & \multirow{2}{*}{\(76.66\pm 50.0\)} \\  & (94.4 to 232.0) & & & & & & \\ \hline \multirow{2}{*}{Sen (\(n\) = 22)} & \multirow{2}{*}{\(155.0\pm 101.0\)} & \multirow{2}{*}{\(172.0\pm 122.0\)} & \multirow{2}{*}{\(-0.15\pm 7\)} & \multirow{2}{*}{\(103.0\pm 107.0\)} & \multirow{2}{*}{\(125.0\pm 118.0\)} & \multirow{2}{*}{\(-0.26\pm 7\)} & \multirow{2}{*}{\(21.36\pm 10.28\)} \\  & (113.0 to 197.0) & & & & & & & \\ \hline \hline \end{tabular} \({}^{*}\) statistical significance within the group; \(\Delta\)—delta; \(\dagger\)—[PERSON]’s d effect size; \(\ddagger\)—[PERSON]’s rank effect size; CI—confidence interval for the mean; \(\ddagger\)—control condition; ES—effects size; EXP—experimental condition; \(n\)—number of study participants; POST—post-test; PRE—pre-test; PVF—peak vertical force.  
\end{table} 
Table 4: A comparison of mean differences in the inter-limb PVF [N] asymmetries due to the applied condition (EXP; CTRL) and time point (pre-test; post-test) in the study participants of different WKF age categories.