## 3 Results
\begin{table}
\begin{tabular}{l c c c c c} \hline  & \multicolumn{3}{c}{**Measurements**} & \multicolumn{3}{c}{**Statistics**} \\  & **1 st** & **2 nd** & **3 rd** & **F** & \(p\) & \(\eta^{2}\) \\ \hline  & \multicolumn{3}{c}{Basketball} & & & \\ \hline Body mass (kg) & 71.6 \(\pm\) 13.7 & 70.8 \(\pm\) 13.3 & 69.7 \(\pm\) 12.8 & 0.644 & 0.528 & 0.017 \\ Lean body mass (kg) & 52.0 \(\pm\) 7.6 & 52.7 \(\pm\) 7.7 & 52.1 \(\pm\) 7.3 & 0.209 & 0.812 & 0.006 \\ Body fat (\%) & 26.4 \(\pm\) 4.4 & 25.6 \(\pm\) 4.7 & 25.2 \(\pm\) 4.3 & 1.782 & 0.175 & 0.045 \\ \hline  & \multicolumn{3}{c}{Handball} & & & & \\ \hline Body mass (kg) & 63.1 \(\pm\) 6.5 & 62.3 \(\pm\) 6.4 & 61.9 \(\pm\) 6.1 & 2.094 & 0.130 & 0.053 \\ Lean body mass (kg) & 46.2 \(\pm\) 3.2 & 46.4 \(\pm\) 3.4 & 45.0 \(\pm\) 3.3 & 0.887 & 0.416 & 0.023 \\ Body fat (\%) & 26.4 \(\pm\) 4.7 & 25.5 \(\pm\) 4.0 & 25.1 \(\pm\) 3.8 & 2.073 & 0.133 & 0.052 \\ \hline \end{tabular}
\end{table} 
Table 3: _Cont._HR\({}_{\rm AT}\) of basketball players differed between the first and second measurements (F = 5.050, \(\eta^{2}\) = 0.119, \(p\) \(<\) 0.001) and between the second and third measurements (\(p\) = 0.007). Differences in U\({}_{\rm AT}\) were observed between the first measurements compared to the other two measurements (F = 7.617, \(\eta^{2}\) = 0.169, 2 nd: \(p\) \(<\) 0.001, 3 rd: \(p\) = 0.018). Similar differences were observed for the time of exercise testing (F = 3.289, \(\eta^{2}\) = 0.081, 1 st vs. 2 nd \(p\) = 0.008, 1 st vs. 3 rd \(p\) \(<\) 0.001). U\({}_{\rm max}\) decreased during the season (F = 5.119, \(\eta^{2}\) = 0.120, 1 st vs. 3 rd \(p\) \(<\) 0.001, 2 nd vs. 3 rd \(p\) = 0.006). The absolute VO\({}_{\rm 2 max}\) (F = 4.085, \(\eta^{2}\) = 0.098, \(p\) = 0.001) and relative VO\({}_{\rm 2 max}\) (F = 4.828, \(\eta^{2}\) = 0.114, \(p\) \(<\) 0.001) differed between time points. No other changes were observed for other variables (Table 4). Handball players showed differences in HR\({}_{\rm AT}\) between the first and second measurements (F4.686, \(\eta^{2}\) = 0.119, \(p\) = 0.012) and between the second and third measurements (\(p\) \(<\) 0.001). Additionally, HR\({}_{\rm max}\) decreased at the third measurement (F = 3.419, \(\eta^{2}\) = 0.084, \(p\) \(<\) 0.05). The absolute VO\({}_{\rm 2 max}\) at the third measurement decreased and differed compared to the first (F = 8.425, \(\eta^{2}\) = 0.038, \(p\) \(<\) 0.001) and second measurements (\(p\) \(<\) 0.05). Similar results for relative VO\({}_{\rm 2 max}\) between the first and third (F = 5.632, \(\eta^{2}\) = 0.016, \(p\) = 0.042) and second and third measurements (\(p\) = 0.039). Blood lactate decreased during the season (F = 5.174, \(\eta^{2}\) = 0.121, 1 st vs. 3 rd \(p\) = 0.008 and 2 nd vs. 3 rd \(p\) = 0.008). Similar changes were observed for RER between the third measurement and the first and second measurements (F = 9.738, \(\eta^{2}\) = 0.206, \(p\) \(<\) 0.001). No other changes were observed (Table 4). Between the sports, no differences were observed for HR\({}_{\rm rest}\) (F = 1.147, \(p\) = 0.325, \(\eta^{2}\) = 0.346). Exercise time to exhaustion was longer for soccer players in comparison with handball players during the first (F = 4.474, \(p\) = 0.013, \(\eta^{2}\) = 0.245) and second measurements (F = 4.351, \(p\) = 0.019, \(\eta^{2}\) = 0.245). The HR\({}_{\rm AT}\) differed in the second measurement between soccer players, basketball players, and handball players (F = 7.396, \(\eta^{2}\) = 0.395 163.3 \(\pm\) 8.8 vs. 152.0 \(\pm\) 11.6, \(p\) = 0.002, and 163.3 \(\pm\) 8.8 vs. 152.8 \(\pm\) 10.9, \(p\) \(<\) 0.001). The absolute values of VO\({}_{\rm 2 max}\) were different at the second measurement between basketball and handball players (F = 4.561, 3502.7 \(\pm\) 824.4 vs. 3027.2 \(\pm\) 390.8, \(p\) = 0.016, \(\eta^{2}\) = 0.408).