## 3 Results
\begin{table}
\begin{tabular}{l l c c c c c c c} \hline \hline  & \multicolumn{2}{c}{**SHOE**} & \multicolumn{2}{c}{**SET**} & \multicolumn{2}{c}{**Partial Eta Squared (\(\eta_{\text{p}}\)\({}^{2}\))**} \\ \hline  & **CON** & **AFT** & **Time Trial 1** & **Time Trial 2** & **Shoe** & **Set** & **Shoe x Set** \\ \hline Time (s) & 815.3 \(\pm\) 80.1 & 815.7 \(\pm\) 88.5 & 798.2 \(\pm\) 86.0 & 832.8 \(\pm\) 78.6 \({}^{*}\) & 0.000 & 0.804 & 0.000 \\ \hline Mean HR (bpm) & 163.0 \(\pm\) 15.8 & 162.5 \(\pm\) 17.7 & 164.9 \(\pm\) 16.9 & 160.6 \(\pm\) 16.3 \({}^{*}\) & 0.010 & 0.766 & 0.044 \\ \hline Maximum HR (bpm) & 169.5 \(\pm\) 15.5 & 169.3 \(\pm\) 17.3 & 170.8 \(\pm\) 16.4 \({}^{*}\) & 0.004 & 0.597 & 0.011 \\ \cline{2-8}  & Fastest km (s/km) & 229.7 \(\pm\) 17.7 & 232.7 \(\pm\) 19.4 & 224.0 \(\pm\) 14.7 & 238.3 \(\pm\) 19.2 \({}^{*}\) & 0.020 & 0.463 & 0.038 \\ \cline{2-8}  & Mean power (W) & 308.5 \(\pm\) 33.0 & 308.0 \(\pm\) 35.9 & 314.9 \(\pm\) 36.6 & 301.6 \(\pm\) 30.7 \({}^{*}\) & 0.001 & 0.670 & 0.003 \\ \cline{2-8}  & Maximum power (W) & 509.5 \(\pm\) 47.5 & 495.6 \(\pm\) 70.0 & 524.2 \(\pm\) 43.3 & 480.9 \(\pm\) 56.5 \({}^{*}\) & 0.028 & 0.275 & 0.039 \\ \cline{2-8}  & Step frequency (spm) & 155.2 \(\pm\) 15.8 & 153.4 \(\pm\) 16.8 \({}^{*}\) & 154.8 \(\pm\) 16.4 & 153.8 \(\pm\) 16.2 & 0.337 & 0.093 & 0.372 \\ \cline{2-8}  & Step length (cm) & 80.7 \(\pm\) 7.5 & 81.8 \(\pm\) 8.2 & 82.8 \(\pm\) 8.1 & 79.7 \(\pm\) 7.3 \({}^{*}\) & 0.080 & 0.642 & 0.225 \\ \cline{2-8}  & Contact time (ms) & 366.3 \(\pm\) 98.7 & 339.7 \(\pm\) 151.9 & 336.3 \(\pm\) 144.6 & 369.8 \(\pm\) 108.1 & 0.059 & 0.093 & 0.065 \\ \cline{2-8}  & Leg stiffness (kN/m) & 9.6 \(\pm\) 3.8 & 9.6 \(\pm\) 3.9 & 9.6 \(\pm\) 3.9 & 9.5 \(\pm\) 3.8 & 0.001 & 0.108 & 0.001 \\ \cline{2-8}  & Vertical oscillation & 6.1 \(\pm\) 1.3 & 6.3 \(\pm\) 1.4 \({}^{*}\) & 6.2 \(\pm\) 1.4 & 6.1 \(\pm\) 1.4 & 0.452 & 0.045 & 0.473 \\ \cline{2-8}  & Time (s) & 339.5 \(\pm\) 37.6 & 342.5 \(\pm\) 44.7 & 340.0 \(\pm\) 37.8 & 342.0 \(\pm\) 44.6 & 0.059 & 0.026 & 0.060 \\ \cline{2-8}  & Mean HR (bpm) & 158.1 \(\pm\) 17.6 & 157.3 \(\pm\) 18.1 & 159.3 \(\pm\) 17.3 & 156.1 \(\pm\) 18.1 \({}^{*}\) & 0.032 & 0.466 & 0.061 \\ \cline{2-8}  & Maximum HR (bpm) & 167.7 \(\pm\) 15.7 & 166.8 \(\pm\) 17.2 & 168.3 \(\pm\) 16.2 & 166.2 \(\pm\) 16.6 \({}^{*}\) & 0.053 & 0.361 & 0.084 \\ \cline{2-8}  & Fastest km (s/km) & 185.8 \(\pm\) 12.4 & 188.9 \(\pm\) 14.2 & 184.9 \(\pm\) 12.5 & 189.8 \(\pm\) 13.9 \({}^{*}\) & 0.179 & 0.416 & 0.306 \\ \cline{2-8}  & Mean power (W) & 276.6 \(\pm\) 21.6 & 273.8 \(\pm\) 26.9 & 275.5 \(\pm\) 24.5 & 274.9 \(\pm\) 24.3 & 0.035 & 0.002 & 0.035 \\ \cline{2-8}  & Maximum power (W) & 371.7 \(\pm\) 48.8 & 352.0 \(\pm\) 24.7 \({}^{*}\) & 365.0 \(\pm\) 45.9 & 358.7 \(\pm\) 32.7 & 0.286 & 0.030 & 0.295 \\ \cline{2-8}  & Step frequency (spm) & 179.2 \(\pm\) 7.3 & 177.8 \(\pm\) 6.8 & 179.3 \(\pm\) 7.3 & 177.7 \(\pm\) 6.8 \({}^{*}\) & 0.205 & 0.321 & 0.302 \\ \cline{2-8}  & Step length (cm) & 155.7 \(\pm\) 16.9 & 155.8 \(\pm\) 17.1 & 155.3 \(\pm\) 16.6 & 156.2 \(\pm\) 17.4 & 0.000 & 0.038 & 0.000 \\ \cline{2-8}  & Contact time (ms) & 189.2 \(\pm\) 15.7 & 192.1 \(\pm\) 20.4 & 187.3 \(\pm\) 15.7 & 194.0 \(\pm\) 20.0 \({}^{*}\) & 0.080 & 0.429 & 0.141 \\ \cline{2-8}  & Leg stiffness (kN/m) & 12.2 \(\pm\) 1.8 & 12.0 \(\pm\) 1.6 & 12.5 \(\pm\) 1.6 & 11.7 \(\pm\) 1.6 \({}^{*}\) & 0.016 & 0.468 & 0.030 \\ \cline{2-8}  & Vertical oscillation & 8.2 \(\pm\) 1.0 & 8.3 \(\pm\) 0.9 & 8.2 \(\pm\) 1.0 & 8.2 \(\pm\) 0.9 & 0.134 & 0.002 & 0.134 \\ \cline{2-8}  & Time (s) & 458.8 \(\pm\) 29.8 & 460.0 \(\pm\) 31.3 & 459.4 \(\pm\) 30.0 & 459.3 \(\pm\) 31.1 & 0.020 & 0.000 & 0.020 \\ \cline{2-8}  & Average heart rate & 168.3 \(\pm\) 16.0 & 167.6 \(\pm\) 16.5 & 168.3 \(\pm\) 16.2 & 167.6 \(\pm\) 16.3 & 0.072 & 0.072 & 0.078 \\ \cline{2-8}  & Maximal heart rate & 173.7 \(\pm\) 15.4 & 173.5 \(\pm\) 16.2 & 173.3 \(\pm\) 15.5 & 173.8 \(\pm\) 16.1 & 0.006 & 0.058 & 0.007 \\ \cline{2-8}  & Fastest km (s/km) & 181.2 \(\pm\) 13.0 & 182.3 \(\pm\) 11.6 & 182.1 \(\pm\) 12.3 & 181.4 \(\pm\) 12.4 & 0.023 & 0.007 & 0.023 \\ \cline{2-8}  & Average power (W) & 321.8 \(\pm\) 21.9 & 319.7 \(\pm\) 24.4 & 321.0 \(\pm\) 24.4 & 320.4 \(\pm\) 21.9 & 0.061 & 0.005 & 0.061A combined effect of the type of shoe and time trials order (i.e., Shoe x Set) was observed in the uphill and downhill segments but not in the mixed terrain (see Table 2).