## 3 Results
### Effects of the Intervention Program on Players' Health and Physical Fitness
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**Characteristics**} & \multicolumn{2}{c}{**Pre**} & \multicolumn{2}{c}{**Post**} & \multirow{2}{*}{**St**} & \multirow{2}{*}{**_p_} & **ES** \\  & **M** & **SD** & **M** & **SD** & & & \\ \hline Weight (kg) & 63.22 & 10.82 & 63.46 & 10.65 & \(-\)0.806 & 0.465 & 0.361 \\ Body fat percentage & 13.78 & 4.99 & 12.42 & 5.44 & 1.726 & 0.159 & 0.772 \\ Muscle mass (kg) & 51.56 & 7.27 & 52.54 & 7.78 & \(-\)2.897 & 0.044 \({}^{*}\) & 1.296 \\ Bone mass (kg) & 2.76 & 0.38 & 2.80 & 0.34 & \(-\)1.633 & 0.178 & 0.730 \\ Body mass index & 20.40 & 2.62 & 20.44 & 2.54 & \(-\)0.459 & 0.670 & 0.205 \\ Basal metabolic rate (Kcal/day) & 1628.20 & 220.00 & 1652.40 & 231.00 & \(-\)3.570 & 0.023 \({}^{*}\) & 1.597 \\ Metabolic age (Y) & 16.20 & 6.02 & 15.60 & 5.13 & 1.500 & 0.208 & 0.671 \\ Body water percentage & 62.50 & 4.70 & 63.06 & 4.70 & \(-\)3.311 & 0.030 \({}^{*}\) & 1.481 \\ Visceral fat index & 1.70 & 1.09 & 1.60 & 0.89 & 1.000 & 0.374 & 0.447 \\ Average heart rate during training & 90.00 & 2.34 & 84.40 & 4.72 & 2.514 & 0.066 & 1.125 \\ \hline \hline \end{tabular} Note: kg = kilograms; Kcal/day = kilocalories per day; Y = years; M = mean; SD = standard deviation. \({}^{*}\) = \(p\)-value < 0.05.  
\end{table} 
Table 3: Players’ body composition changes and average heart rate pre- and post-intervention program. Finally, Table 6 shows the results concerning the players' muscle strength, where a clear increase in the player's strength capacity was observed (\(p<0.05\)). The lifted load experienced an increase of 83.56% (\(p=0.000\); ES = 0.949) for the bench press exercise, 105.61% (\(p=000\); ES = 0.940) for deadlift, 133.34% (\(p=0.002\); ES = 0.846) for hip thrust, 82.61% (\(p=0.001\); ES = 0.930) for lat pull down, 97.3% (\(p=0.001\); ES = 0.909) for leg press, 91.67% (\(p=0.001\); ES = 0.906) for overhead press, 173.44% (\(p=0.000\); ES = 0.924) for Penday row, and finally, 62.96% (\(p=0.000\); ES = 0.914) for squat. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline
**Exercise** & \multicolumn{2}{c}{**Load Week 1**} & \multicolumn{2}{c}{**Load Week 4**} & \multicolumn{2}{c}{**Load Week 8**} & \multicolumn{2}{c}{**X2**} & \(p\) & **ES** \\
**Exercise** & **M** & **SD** & **M** & **SD** & **M** & **SD** & & **Weeks 1 and 8** \\ \hline Bench press & 22.50 & 7.16 & 31.60 & 7.64 & 41.30 & 7.43 & 34.266 & 0.000 \({}^{**}\) & 0.949 \\ Deadlift & 21.40 & 6.07 & 28.00 & 7.58 & 44.00 & 7.42 & 34.035 & 0.000 \({}^{**}\) & 0.940 \\ Hip thrust & 12.00 & 2.74 & 19.00 & 2.24 & 28.00 & 2.74 & 33.101 & 0.002 \({}^{**}\) & 0.846 \\ Lat pull down & 23.00 & 4.47 & 32.00 & 6.71 & 42.00 & 6.71 & 33.764 & 0.001 \({}^{**}\) & 0.930 \\ Leg press & 37.00 & 13.96 & 54.00 & 19.49 & 73.00 & 21.09 & 33.781 & 0.001 \({}^{**}\) & 0.909 \\ Overhead press & 4.80 & 1.10 & 6.50 & 1.22 & 9.20 & 1.10 & 33.515 & 0.001 \({}^{**}\) & 0.906 \\ Penday row & 12.80 & 6.57 & 24.00 & 5.48 & 35.00 & 6.12 & 33.891 & 0.000 \({}^{**}\) & 0.924 \\ Squat & 27.00 & 2.74 & 36.00 & 6.52 & 44.00 & 6.75 & 34.064 & 0.000 \({}^{**}\) & 0.914 \\ \hline \hline \end{tabular} Note: M = mean; SD = standard deviation. \({}^{**}\) = \(p\)-value \(<0.01\).  
\end{table} 
Table 6: Progression of players’ loads during the intervention program.