## 3 Results  
The data revealed that the resultant force in the side kicks was significantly higher and peaked later in than in the turning kicks (Figure 3). Regarding the differences in the impact force between the left and right legs, concerning the side kicks, the right leg produced a significantly higher (\(p<0.01\)) F\({}_{\mathrm{x}}\) than the left leg (Table 1). The side kicks produced a significantly higher (\(p<0.01\)) F\({}_{\rm x}\), F\({}_{\rm z}\), and resultant force than the turning kicks, with no significant differences between F\({}_{\rm x}\) and F\({}_{\rm y}\) in the turning kicks and side kicks (Table 2). \begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{**Kind of Kick**} & \multirow{2}{*}{**Axis of Force**} & \multirow{2}{*}{**Indicator**} & \multicolumn{3}{c}{**Force [N]**} \\ \cline{3-6}  & & & **Right Leg** & **Left Leg** & **Total** \\ \hline \multirow{6}{*}{Turning kick} & \multirow{2}{*}{F\({}_{\rm y}\)} & Mean & 134.30 & 105.18 & 119.74 \\ \cline{3-6}  & & SD & 58.02 & 56.20 & 58.28 \\ \cline{3-6}  & & Minimum & 44.23 & 19.56 & 19.56 \\ \cline{3-6}  & & Maximum & 264.14 & 222.82 & 264.14 \\ \cline{3-6}  & & SS & U = 1.58; \(p\) = 0.114 & - \\ \cline{3-6}  & & Mean & 2844.48 & 2549.98 & 2697.23 \\ \cline{3-6}  & & SD & 624.18 & 433.26 & 550.90 \\ \cline{3-6}  & & Minimum & 1857.90 & 1406.04 & 1406.04 \\ \cline{3-6}  & & Maximum & 4230.87 & 3247.66 & 4230.87 \\ \cline{3-6}  & & SS & U = 1.31; \(p\) = 0.190 & - \\ \hline \multirow{6}{*}{F} & \multirow{2}{*}{F\({}_{\rm z}\)} & Mean & 2921.76 & 2648.98 & 2785.37 \\ \cline{3-6}  & & SD & 669.23 & 441.41 & 576.36 \\ \cline{3-6}  & & Minimum & 1898.66 & 1456.15 & 1456.15 \\ \cline{3-6}  & & Maximum & 4383.13 & 3344.36 & 4383.13 \\ \cline{3-6}  & & SS & U = 0.98; \(p\) = 0.323 & - \\ \hline \multirow{6}{*}{F\({}_{\rm x}\)} & \multirow{2}{*}{F\({}_{\rm y}\)} & Mean & 1200.33 & 403.00 & 801.66 \\ \cline{3-6}  & & SD & 273.40 & 101.48 & 452.15 \\ \cline{3-6}  & & Minimum & 521.68 & 218.16 & 218.16 \\ \cline{3-6}  & & Maximum & 1499.72 & 612.99 & 1499.72 \\ \cline{3-6}  & & SS & U = 5.34; \(p\) < 0.001 & - \\ \hline \multirow{6}{*}{Side kick} & \multirow{2}{*}{F\({}_{\rm z}\)} & Mean & 148.53 & 127.58 & 138.05 \\ \cline{3-6}  & & SD & 59.48 & 70.94 & 65.48 \\ \cline{3-6}  & & Minimum & 34.50 & 37.96 & 34.50 \\ \cline{3-6}  & & Maximum & 261.01 & 293.59 & 293.59 \\ \cline{3-6}  & & SS & U = 1.50; \(p\) = 0.133 & - \\ \cline{3-6}  & & Mean & 4614.31 & 4275.26 & 4444.79 \\ \cline{3-6}  & & SD & 1287.88 & 1376.73 & 1327.00 \\ \cline{3-6}  & & Minimum & 1575.25 & 1602.86 & 1575.25 \\ \cline{3-6}  & & Maximum & 5911.26 & 5840.10 & 5911.26 \\ \cline{3-6}  & & SS & U = 1.05; \(p\) = 0.291 & - \\ \hline \multirow{6}{*}{F} & \multirow{2}{*}{Mean} & 4754.11 & 4429.77 & 4591.94 \\ \cline{3-6}  & & SD & 1290.31 & 1361.25 & 1319.40 \\ \cline{1-1} \cline{3-6}  & & Minimum & 1594.11 & 1691.45 & 1594.11 \\ \cline{1-1} \cline{3-6}  & & Maximum & 6099.03 & 5993.34 & 6099.03 \\ \cline{1-1} \cline{3-6}  & & SS & U = 1.01; \(p\) = 0.310 & - \\ \hline \end{tabular} SD—standard deviation; SS—statistical significance; Total—the mean force of the right and left legs; U—Test statistic result for the Mann–Whitney U test; \(p\)—statistical significance value.  
\end{table} 
Table 1: _Cont._With regard to the turning kicks, there was almost a full correlation between F\({}_{\rm z}\) and the resultant impact force value (\(r\) = 0.988 for right, and \(r\) = 0.994 for left leg) within and across both kicking legs. Furthermore, for turning kicks with the right leg, which was the participants' preferred kicking leg, there was a medium, negative correlation between F\({}_{\rm x}\) and F\({}_{\rm z}\), and the resultant impact force did not shift significantly upwards of the target (F\({}_{\rm y}\)) (Table 3).