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Sensitivity and specificity of maximal oxygen uptake (V̇O2max) primary (plateau) and secondary (heart rate [HR]+ respiratory exchange ratio [RER]) criteria. Note: s = seconds, HR = heart rate, RER = respiratory exchange ratio.
| 10 s | 30 s | 60 s | |
|---|---|---|---|
| Plateau | |||
| Sensitivity | 30.0 | 20.0 | 20.8 |
| Specificity | 44.4 | 55.6 | 60 |
| HR + RER | |||
| Sensitivity | 95 | 100 | 91.3 |
| Specificity | 25.0 | 11.1 | 20.0 |
