Table 1.
Characteristics of COPD Patients
| Sex, M/F | 17/0 |
| Age, yr | 73.5 ± 5.7 (61-79) |
| BMI | 22.3± .5 (16.8 – 30.5) |
| Smoker/ever-smoker/Nonsmoker | 5/12/0 |
| GOLD Stage (I/II/III/IV) | 1/6/6/4 |
| FVC, L | 1.7 ± 0.1 |
| FVC, % predicted | 54.5 ± 13.2 |
| FEV1, L | 0.9 ± 0.1 |
| FEV1, % predicted | 43.1 ± 16.2 |
| FEV1/FVC | 52.6 ± 9.9 |
| BODE Index | 4.1 ± 1.6 (0-7) |
| 6MWT | |
| Distance, m | 380.6 ± 51.9 (272-468) |
| Baseline dyspnea Borg score | 1 (0-3) |
| Post-exercise Dyspnea Borg Score | 4.9 (3-8) |
| Baseline IC, L | 1.15 ± 0.37 |
| Post-exercise IC, L | 1.16 ± 0.35 |
| SaO2 | 95.4 ± 1.6 |
| HRCT Emphysema Score | 17.1 ± 14.9 (2-51) |
| 0-10 | 8 |
| 11-20 | 4 |
| 21-30 | 3 |
| > 30 | 2 |
| CPET | |
| AT (Aerobic Threshold), ml/kg/min | 4.6 ± 1.9 |
| AT VO2, ml/min | 621.1 ± 120.0 |
| AT VCO2, ml/min | 595.1 ± 110.0 |
| VO2max, ml/min | 757.1 ± 168.8 |
Abbreviations: GOLD: Global initiative for lung disease; FVC: forced vital capacity; FEV1: Forced expiratory volume in 1 sec; L: liter; SaO2: Saturation of oxygen; BODE: the body-mass index (B), the degree of airflow obstruction (O) and functional dyspnea (D), and exercise capacity (E).