Outcome values to report in standard clinical cardiopulmonary exercise testing as employed by the Task Force members
| Exercise capacity | Cardiovascular limitation | Gas exchange limitation | Ventilatory limitation |
| Variable relevance | |||
| V′O2peak | HRpeak | V′E/V′CO2 slope | V′Epeak in % MVVrest |
| Peak WR | V′O2/WR slope | Lowest V′E/V′CO2 value (nadir) | |
| AT | O2pulsepeak HR/V′O2 slope | SpO2peak Borg symptom scores | |
| For studies featuring additional measurements | |||
| VD/VT# | VT/IC¶ | ||
| PA–aO2peak# | IRVpeak¶ |
V′O2peak: peak oxygen uptake; WR: work rate; AT: anaerobic threshold; HR: heart rate; V′E: minute ventilation; V′CO2: carbon dioxide production; V′Epeak: peak minute ventilation; MVVrest: maximum voluntary ventilation at rest; V′O2: oxygen uptake; SpO2peak: peak arterial oxygen saturation measured by pulse oximetry; VD/VT: dead space/tidal volume ratio; IC: inspiratory capacity; PA–aO2peak: peak alveolar–arterial oxygen tension difference; IRVpeak: peak inspiratory reserve volume. #: in studies featuring arterial blood gas measurements; ¶: in studies featuring serial inspiratory capacity measurements.