## 3 Results
### The Degree of Muscle Activation during Take-Off and Touchdown  
During take-off, the degrees of activation of the RA on both the braking and the jumping sides were significantly reduced after the fatigue (_p_ < 0.05). The degree of activation of the ES increased, although not significantly. The degrees of activation of the RF, BF, TA, and GN on the braking and jumping sides showed no differences before and after muscle fatigue (Table 4). \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multicolumn{1}{c}{**Take-Off Jump**} & \multicolumn{2}{c}{**Pre-Fatigue**} & \multicolumn{2}{c}{**Post-Fatigue**} & \multicolumn{2}{c}{**Mean Difference**} & **95\%CI** \\ \cline{3-8} \multicolumn{1}{c}{} & \multicolumn{1}{c}{**B**} & \multicolumn{1}{c}{**J**} & \multicolumn{1}{c}{**B**} & \multicolumn{1}{c}{**J**} & & \\ \hline \multirow{3}{*}{RA} & CMJ & 57.95 \(\pm\) 48.36 & 49.17 \(\pm\) 50.84 & 24.72 \(\pm\) 23.05 * & 27.53 \(\pm\) 31.39 * & B:\(-\)33.23 & B:\(16.15\) \\  & SPJ & 58.37 \(\pm\) 54.26 & 65.49 \(\pm\) 56.70 & 41.29 \(\pm\) 36.60 * & 33.83 \(\pm\) 22.42 * & B:\(-\)14.90 & B:\(14.69\) \\  & & & & & & \(\cdot\)\(-\)31.66 & J:\(27.41\) \\ \hline \multirow{3}{*}{ES} & CMJ & 46.15 \(\pm\) 22.30 & 55.07 \(\pm\) 30.72 & 68.08 \(\pm\) 62.63 & 67.00 \(\pm\) 45.62 & B:\(21.93\) & B:\(26.94\) \\  & SPJ & 57.96 \(\pm\) 45.73 & 46.55 \(\pm\) 21.32 & 71.21 \(\pm\) 62.34 & 53.56 \(\pm\) 29.05 & 3.11.93 & J:\(14.30\) \\  & & & & & & B:\(7.01\) & B:\(23.93\) \\  & & & & & & \(\cdot\)\(13.25\) & J:\(20.83\) \\ \hline \multirow{3}{*}{RF} & CMJ & 164.16 \(\pm\) 60.15 & 152.54 \(\pm\) 50.92 & 145.01 \(\pm\) 59.67 & 148.72 \(\pm\) 31.74 & B:\(-\)19.13 & B:\(30.90\) \\  & SPJ & 92.42 \(\pm\) 38.94 & 129.09 \(\pm\) 66.32 & 109.99 \(\pm\) 72.37 & 131.18 \(\pm\) 48.96 & 3.17.57 & B:\(38.38\) \\  & & & & & & \(\cdot\)\(2.09\) & J:\(21.61\) \\ \hline \multirow{3}{*}{BF} & CMJ & 64.14 \(\pm\) 37.77 & 85.29 \(\pm\) 41.71 & 75.88 \(\pm\) 34.31 & 77.80 \(\pm\) 41.93 & B:\(11.74\) & B:\(16.73\) \\  & & & & & & \(\cdot\)\(1.749\) & J:\(28.53\) \\  & SPJ & 124.12 \(\pm\) 64.52 & 102.35 \(\pm\) 45.51 & 117.66 \(\pm\) 49.22 & 108.85 \(\pm\) 54.85 & 3.84.31 \\  & & & & & & \(\cdot\)\(\cdot\)\(6.46\) & J:\(50.05\) \\ \hline \multirow{3}{*}{TA} & CMJ & 25.50 \(\pm\) 15.37 & 27.89 \(\pm\) 19.06 & 22.95 \(\pm\) 9.68 & 19.43 \(\pm\) 8.76 & B:\(-\)2.55 & B:\(9.88\) \\  & SPJ & 38.92 \(\pm\) 27.16 & 29.08 \(\pm\) 27.95 & 30.83 \(\pm\) 17.24 & 31.30 \(\pm\) 25.63 & B:\(-\)8.09 & B:\(15.13\) \\  & & & & & & \(\cdot\)\(2.22\) & J:\(11.14\) \\ \hline \multirow{3}{*}{GN} & CMJ & 193.07 \(\pm\) 101.39 & 271.96 \(\pm\) 222.94 & 208.36 \(\pm\) 82.38 & 253.78 \(\pm\) 213.65 & B:\(15.29\) & B:\(29.12\) \\  & & & & & & \(\cdot\)\(\cdot\)\(18.18\) & J:\(17.48\) \\ \cline{1-1}  & SPJ & 233.19 \(\pm\) 60.33 & 208.56 \(\pm\) 130.77 & 229.85 \(\pm\) 56.81 & 235.67 \(\pm\) 149.25 & B:\(27.11\) & B:\(30.14\) \\ \hline \hline \end{tabular}
\begin{tabular}{c c c c c c} \hline \hline \multicolumn{1}{c}{Asterisks (*) indicate a significant difference (_p_ < 0.05); MVIC: maximal volitional contraction; CMJ: counter-movement jump; SPJ: spike jump; B braking leg: J: jumping leg.} \\ \end{tabular}
\end{table} 
Table 4: Muscle activation during take-off (%MVIC).