Table 1.
Intraclass Correlation Coefficient and the mean absolute percentage error comparing different methodologies assessing V̇O
2max
Intraclass Correlation Coefficient [95% CI]; “Interpretation”
Mean Absolute Percentage Error [%]
Smartwatch Run 1 vs. respiratory gas analysis
0.37 [-0.25; 0.71]; “poor”
5.58
Smartwach Run 2 vs. respiratory gas analysis
0.54 [-0.3; 8.4]; “moderate”
1.06
YoYo Intermittent Recovery Test 2 vs. respiratory gas analysis
0.17 [-5.7; 0.6]; “poor”
4.2