# Evaluation of Lower Extremities Power, Movement, Position and Effectiveness in Volleyball
## 3 Results  
The lack of GPFReception and EFReception values for opposite players (Table 2) is related to the specificity of their position, in which they do not receive the serves. The minimum value of the EFSets coefficient for outside hitter players was 0.00, which indicates a mistake in this element or a lack of situational passes by at least one of the players appearing in this position. A similar situation occurs for players in the middle blocker position for the EFReception coefficient. The reception coefficient for the setter (Table 3) reaches the value of 0.00 due to the lack of a situational reception by one of the players. On the other hand, the lack of numerical values for the libero player in the case of the variables GPFpts, GPFService, GPFAttack, and EFService is due to the player's characteristic style of playing. The lack of SD for EFSets proves a small number of situational rallies performed by players appearing in this position. The analyses with the Kruskal-Wallis test showed statistically significant differences in all the variables studied. Flight time (TF, H = 122.96; \(p<0.001\).) was the shortest for the players in the libero position and then the setter, attacker and middle, and the longest flight time was shown by the receiving players. The contact time with the floor (TC, H = 48.31; \begin{table}
\begin{tabular}{c c c c c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Variable**} & \multicolumn{8}{c}{**Opposite**} & \multicolumn{8}{c}{**Outside Hitter**} & \multicolumn{8}{c}{**Middle Blocker**} \\ \cline{2-13}  & **X** & **Min.** & **Max.** & **SD** & **V** & **X** & **Min.** & **Max.** & **SD** & **V** & **X** & **Min.** & **Max.** & **SD** & **V** \\ \hline GPF Points & 12.74 & 8.98 & 16.50 & 5.32 & 41.75 & 11.74 & 0.61 & 25.49 & 11.53 & 98.22 & 6.13 & 3.28 & 10.80 & 3.34 & 54.53 \\ \hline GPF Serve & 8.24 & 6.50 & 9.99 & 2.47 & 29.95 & 9.53 & 0.97 & 20.66 & 9.23 & 96.81 & 6.98 & 4.27 & 8.83 & 2.00 & 28.58 \\ \hline GPF & - & - & - & - & - & 16.40 & 0.86 & 31.80 & 16.21 & 98.83 & 0.22 & 0.00 & 0.43 & 0.19 & 86.07 \\ \hline GPF Attack & 17.17 & 13.10 & 21.23 & 5.75 & 33.52 & 11.44 & 0.38 & 23.39 & 11.03 & 96.49 & 4.33 & 1.78 & 8.33 & 2.80 & 64.75 \\ \hline EF Serve & 4.95 & 4.17 & 5.72 & 1.10 & 22.18 & 7.06 & 0.78 & 15.03 & 6.81 & 96.58 & 4.80 & 3.30 & 7.27 & 1.74 & 36.23 \\ \hline EF & - & - & - & - & - & 15.25 & 0.86 & 29.50 & 14.89 & 97.63 & 0.07 & 0.00 & 0.14 & 0.08 & 115.47 \\ \hline EF Attack & 5.62 & 3.32 & 7.92 & 3.26 & 57.92 & 4.18 & 0.21 & 8.67 & 4.03 & 96.54 & 2.33 & 1.28 & 4.18 & 1.29 & 55.60 \\ \hline EF Sets & 0.78 & 0.34 & 1.23 & 0.63 & 80.81 & 1.07 & 0.00 & 2.13 & 1.05 & 98.93 & 0.62 & 0.22 & 1.12 & 0.41 & 67.22 \\ \hline GEF Total & 3.11 & 2.84 & 3.39 & 0.39 & 12.58 & 9.14 & 6.27 & 14.71 & 3.81 & 41.70 & 5.65 & 2.85 & 7.43 & 2.04 & 36.15 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Comparison of performance abilities according to regular player’s position. \begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**Variable**} & \multicolumn{8}{c}{**Setter**} & \multicolumn{8}{c}{**Libero**} \\ \cline{2-13}  & **X** & **Min.** & **Max.** & **SD** & **V** & **X** & **Min.** & **Max.** & **SD** & **V** \\ \hline GPF Points & 1.52 & 0.61 & 2.43 & 1.29 & 84.85 & - & - & - & - & - \\ \hline GPF Serve & 8.73 & 7.37 & 10.09 & 1.92 & 22.00 & - & - & - & - & - \\ \hline GPF Reception & 0.22 & 0.00 & 0.43 & 0.31 & 141.42 & 16.55 & 2.30 & 30.79 & 20.14 & 121.75 \\ \hline GPF Attack & 1.31 & 0.38 & 2.25 & 1.32 & 100.93 & - & - & - & - & - \\ \hline EF Serve & 6.98 & 6.01 & 7.95 & 1.37 & 19.64 & - & - & - & - & - \\ \hline EF Reception & 0.07 & 0.00 & 0.14 & 0.10 & 141.42 & 14.82 & 2.01 & 27.63 & 18.11 & 122.20 \\ \hline EF Attack & 0.53 & 0.11 & 0.96 & 0.61 & 113.39 & - & - & - & - & - \\ \hline EF Sets & 42.83 & 41.26 & 44.39 & 2.22 & 5.18 & 1.91 & 1.91 & 1.91 & 0.00 & 0.00 \\ \hline GEF Total & 29.42 & 19.15 & 39.69 & 14.52 & 49.36 & 17.50 & 16.00 & 19.00 & 2.12 & 12.12 \\ \hline \hline \end{tabular}
\end{table}