# Acute Effects of Combined Hypoxia and Fatigue on Balance in Young Men
## 3 Results
### Strategy Scores  
Exercise (\(p\) = 0.001, \(\eta^{2}\) = 0.78; group F), exercise in hypoxia (\(p\) = 0.002, \(\eta^{2}\) = 0.54; group FH) and hypoxia (\(p\) = 0.01, \(\eta^{2}\) = 0.56; group H) influenced the attenuation of the ankle joint strategy (Table 3) in the SS 1 condition. Also, without visual information (SS 2), there was an increase in the importance of the hip joint strategy in the groups performing the exercise test (\(p\) = 0.001, \(\eta^{2}\) = 0.70; group F) and the Wingate test under hypoxia (\(p\) = 0.004, \(\eta^{2}\) = 0.49; group FH) (Table 4).  
\begin{table}
\begin{tabular}{l l l l l l} \hline \hline
**Variable [\%]** & **Group** & **Baseline Me \(\pm\) QD** & **Post Me \(\pm\) QD** & \(p\) & \(\eta^{2}\) \\ \hline SS 1 & C & \(96.50\pm 0.50\) & \(95.50\pm 0.50\) & 0.09 & \\  & H & \(95.50\pm 0.75\) & \(95.00\pm 0.5\) & 0.01 & 0.56 \\  & F & \(95.00\pm 0.25\) & \(91.00\pm 3.00\) & 0.001 & 0.78 \\  & FH & \(95.00\pm 1.00\) & \(93.00\pm 1.75\) & 0.002 & 0.54 \\ \hline SS 2 & C & \(94.75\pm 1.00\) & \(94.50\pm 0.75\) & 0.88 & \\  & H & \(94.75\pm 0.5\) & \(94.25\pm 0.75\) & 0.15 & \\  & F & \(94.00\pm 1.50\) & \(91.00\pm 3.75\) & 0.001 & 0.70 \\  & FH & \(94.50\pm 1.00\) & \(91.50\pm 2.25\) & 0.004 & 0.49 \\ \hline SS 3 & C & \(94.75\pm 1.50\) & \(94.00\pm 1.00\) & 0.51 & \\  & H & \(94.25\pm 2\) & \(94.50\pm 0.75\) & 0.89 & \\  & F & \(90.50\pm 2.25\) & \(91.00\pm 4.25\) & 0.41 & \\  & FH & \(93.00\pm 1.50\) & \(92.50\pm 2.25\) & 0.86 & \\ \hline SS 4 & C & \(90.50\pm 1.00\) & \(91.75\pm 0.75\) & 0.03 & 0.37 \\  & H & \(88.50\pm 2.5\) & \(89.50\pm 1.5\) & 0.13 & \\  & F & \(89.00\pm 3.25\) & \(85.50\pm 2.75\) & 0.1 & \\  & FH & \(89.00\pm 1.25\) & \(86.00\pm 2.25\) & 0.13 & \\ \hline SS 5 & C & \(78.75\pm 3.75\) & \(83.25\pm 3.25\) & 0.09 & \\  & H & \(77.25\pm 4.25\) & \(83.00\pm 4.25\) & 0.08 & \\  & F & \(74.50\pm 5.75\) & \(74.00\pm 8.25\) & 0.61 & \\  & FH & \(77.50\pm 6.25\) & \(75.50\pm 4.75\) & 0.85 & \\ \hline SS 6 & C & \(84.25\pm 4.50\) & \(87.50\pm 2.00\) & 0.01 & 0.43 \\  & H & \(81.00\pm 4.5\) & \(84.50\pm 4\) & 0.09 & \\  & F & \(73.50\pm 7.75\) & \(71.50\pm 8.50\) & 0.31 & \\  & FH & \(79.50\pm 4.75\) & \(78.50\pm 8.50\) & 0.65 & \\ \hline SS 1: strategy coal. 1; SS 2: strategy coal. 2; SS 3: strategy coal. 3; SS 4: strategy comd. 4; SS 5: strategy comd. 5; SS 6: strategy comd. 6; C: control group; H: hypoxia-treated group; F: fatigue induced by anaerobic exercise; FH: fatigue induced by anaerobic exercise in hypoxia; Me—median; QD—partial deviation; \(\eta^{2}\)—effect size. & \\ \hline \hline \end{tabular}
\end{table}
Table 4: Effect of maximal exercise in hypoxia and normoxia on balance strategy.  
\begin{table}
\begin{tabular}{l l l l l l} \hline \hline
**Variable [\%]** & **Group** & **Baseline Me \(\pm\) QD** & **Post Me \(\pm\) QD** & \(p\) & \(\eta^{2}\) \\ \hline ES 4 & C & \(90.25\pm 3.00\) & \(92.00\pm 1.75\) & 0.08 & \\  & H & \(85.75\pm 5\) & \(89.25\pm 3.25\) & 0.05 & \\  & F & \(89.00\pm 2.75\) & \(86.00\pm 2.75\) & 0.20 & \\  & FH & \(89.50\pm 3.25\) & \(86.50\pm 3.50\) & 0.16 & \\ \hline ES 5 & C & \(69.50\pm 5.25\) & \(75.50\pm 6.00\) & 0.04 & 0.355 \\  & H & \(66.75\pm 4\) & \(72.50\pm 3.25\) & 0.07 & \\  & F & \(70.50\pm 5.50\) & \(71.00\pm 6.00\)