Table 2.
Variables obtained in the CPET in COPD patients
| CPET variables | COPD (n=27) |
|---|---|
| Rest | |
| HR peak, bpm | 77.1±9.8 |
| SBP, mmHg | 137.0±14.0 |
| DBP, mmHg | 82.4±8.9 |
| SpO2, % | 94.0±2.4 |
| BORG dyspnea score | 0.2±0.8 |
| BORG lower limbs fatigue score | 0.1±0.6 |
| Incremental exercise | |
| VO2peak, mL⋅min−1 | 972.6±298.9 |
| VO2peak, mL⋅min−1⋅kg−1 | 12.8±3.0 |
| VO2peak, % predicted | 62.1±14.9 |
| VCO2peak, mL⋅min−1 | 1,080±389.5 |
| RER | 1.1±0.1 |
| VE, L⋅min−1 | 43.4±17.0 |
| VE/MVV | 73.9±22.8 |
| HR peak, bpm | 124.7±15.9 |
| SBP peak, mmHg | 204.4±24.5 |
| DBP peak, mmHg | 106.6±10.3 |
| SpO2 peak, % | 86.8±8.9 |
| Power, W | 72.8±39.2 |
| Exercise time, seconds | 568.4±142.0 |
| BORG dyspnea score peak | 6.1±2.3 |
| BORG lower limbs fatigue score peak | 4.3±3.6 |
Note: Values are presented as mean ± SD.
Abbreviations: CPET, cardiopulmonary exercise test; DBP, diastolic blood pressure; HR, heart rate; MVV, maximal voluntary ventilation; RER, respiratory exchange ratio; SBP, systolic blood pressure; SpO2, oxygen saturation; VCO2, carbon dioxide output; VE, minute ventilation; VO2, pulmonary oxygen uptake.