Table 5.
Correlation Between Emphysema Score and Measurement in CPET
| Emphysema Score Correlated to | NO. | R | P Value |
|---|---|---|---|
| FVC, L (pre-exercise) | 17 | -0.491 | 0.0455 |
| FVC, % predicted (pre-exercise) | 17 | -0.402 | 0.1096 |
| FVC, L (post-exercise) | 17 | -0.553 | 0.0213 |
| FVC, % predicted (post-exercise) | 17 | -0.463 | 0.0616 |
| FEV1, L (pre-exercise) | 17 | -0.573 | 0.0162 |
| FVC, % predicted (pre-exercise) | 17 | -0.484 | 0.0492 |
| FEV1, L (post-exercise) | 17 | -0.627 | 0.0070 |
| FVC, % predicted (pre-exercise) | 17 | -0.516 | 0.0340 |
| Inspiratory capacity, L (pre-exercise) | 17 | -0.538 | 0.026 |
| Inspiratory capacity, L (post-exercise) | 17 | -0.368 | 0.1612 |
| AT, ml/kg/min | 17 | -0.595 | 0.0118 |
| AT-VO2, ml/min | 17 | -0.566 | 0.0179 |
| AT-VCO2, ml/min | 17 | -0.555 | 0.0207 |
| VO2 max, ml/min | 17 | -0.514 | 0.0350 |
| O2 saturation, % (post-exercise) | 17 | -0.584 | 0.0138 |
| HR, bpm, (pre-exercise) | 17 | 0.550 | 0.0223 |
| Borg scale, (pre-exercise) | 17 | 0.541 | 0.025 |
| Borg scale, (post-exercise) | 17 | 0.2051 | 0.4296 |
Abbreviations: FVC: Forced vital capacity; FEV1: Forced expiratory volume second 1; ERV: Expiratory reserve volume; IC: Inspiratory capacity; HR: Heart rate; AT: Anaerobic threshold; VO2 max: maximal oxygen consumption; min: minute.