## 3 Results
### Test and Match Performance Data
\begin{table}
\begin{tabular}{c c c} \hline \hline
**Parameter** & **Mean \(\pm\) SD** & **Range** \\ \hline \multicolumn{3}{c}{IHCT—stress parameter} \\ Heart rate minute 0 after test [b x min\({}^{-1}\)] & 180 \(\pm\) 7 & 170–194 \\ Heart rate 2 min after test [b x min\({}^{-1}\)] & 143 \(\pm\) 14 & 129–160 \\ Heart rate 6 min after test [b x min\({}^{-1}\)] & 110 \(\pm\) 9 & 94–128 \\ Heart rate 10 min after test [b x min\({}^{-1}\)] & 104 \(\pm\) 10 & 89–121 \\ Lactate 2 min after test [mmol x L\({}^{-1}\)] & 13.5 \(\pm\) 2.35 & 8.54–18.6 \\ Lactate 6 min after test [mmol x L\({}^{-1}\)] & 15.6 \(\pm\) 2.24 & 12.3–20.6 \\ Lactate 10 min after test [mmol x L\({}^{-1}\)] & 14.9 \(\pm\) 2.73 & 11.3–18.9 \\ \hline \hline \end{tabular}
\begin{tabular}{c c c} \hline \hline
**Parameter** & **Mean \(\pm\) SD** & **Range** \\ \hline \multicolumn{3}{c}{IHCT—stress parameter} \\ Heart rate minute 0 after test [b x min\({}^{-1}\)] & 180 \(\pm\) 7 & 170–194 \\ Heart rate 2 min after test [b x min\({}^{-1}\)] & 143 \(\pm\) 14 & 129–160 \\ Heart rate 6 min after test [b x min\({}^{-1}\)] & 110 \(\pm\) 9 & 94–128 \\ Heart rate 10 min after test [b x min\({}^{-1}\)] & 104 \(\pm\) 10 & 89–121 \\ Lactate 2 min after test [mmol x L\({}^{-1}\)] & 13.5 \(\pm\) 2.35 & 8.54–18.6 \\ Lactate 6 min after test [mmol x L\({}^{-1}\)] & 15.6 \(\pm\) 2.24 & 12.3–20.6 \\ Lactate 10 min after test [mmol x L\({}^{-1}\)] & 14.9 \(\pm\) 2.73 & 11.3–18.9 \\ \hline \hline \end{tabular}
\begin{tabular}{c c c} \hline \hline
**Parameter** & **Mean \(\pm\) SD** & **Range** \\ \hline \multicolumn{3}{c}{IHCT—stress parameter} \\ Heart rate minute 0 after test [b x min\({}^{-1}\)] & 180 \(\pm\) 7 & 170–194 \\ Heart rate 2 min after test [b x min\({}^{-1}\)] & 143 \(\pm\) 14 & 129–160 \\ Heart rate 6 min after test [b x min\({}^{-1}\)] & 110 \(\pm\) 9 & 94–128 \\ Heart rate 10 min after test [b x min\({}^{-1}\)] & 104 \(\pm\) 10 & 89–121 \\ Lactate 2 min after test [mmol x L\({}^{-1}\)] & 13.5 \(\pm\) 2.35 & 8.54–18.6 \\ Lactate 6 min after test [mmol x L\({}^{-1}\)] & 15.6 \(\pm\) 2.24 & 12.3–20.6 \\ Lactate 10 min after test [mmol x L\({}^{-1}\)] & 14.9 \(\pm\) 2.73 & 11.3–18.9 \\ \hline \hline \end{tabular}
\begin{tabular}{c c c} \hline \hline
**Parameter** & **Mean \(\pm\) SD** & **Range** \\ \hline \multicolumn{3}{c}{IHCT—stress parameter} \\ Heart rate minute 0 after test [b x min\({}^{-1}\)] & 180 \(\pm\) 7 & 170–194 \\ Heart rate 2 min after test [b x min\({}^{-1}\)] & 143 \(\pm\) 14 & 129–160 \\ Heart rate 6 min after test [b x min\({}^{-1}\)] & 110 \(\pm\) 9 & 94–128 \\ Heart rate 10 min after test [b x min\({}^{-1}\)] & 104 \(\pm\) 10 & 89–121 \\ Lactate 2 min after test [mmol x L\({}^{-1}\)] & 13.5 \(\pm\) 2.35 & 8.54–18.6 \\ Lactate 6 min after test [mmol x L\({}^{-1}\)] & 15.6 \(\pm\) 2.24 & 12.3–20.6 \\ Lactate 10 min after test [mmol x L\({}^{-1}\)] & 14.9 \(\pm\) 2.73 & 11.3–18.9 \\ \hline \hline \end{tabular}
\begin{tabular}{c c c} \hline \hline
**Accuracy** heart rate (relative), & 42.3 \(\pm\) 4.99 & 34.0–52.0 \\ minute 0 to minute 10 after test [\%] & & \\ Lactate degradation rate per minute, & & & \\ minute 6 to minute 10 after test [mmol x L\({}^{-1}\)/min] & 0.19 \(\pm\) 0.28 & \(-\)0.35–0.65 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Descriptive data for all IHCT parameters and the match performance score (MPS).