Baseline characteristics, exercise capacity and physical activity for COPD subjects and healthy controls
| COPD mean (SD) | Healthy controls mean (SD) | p Value | |
| Age (years) | 67.93 (9.41) | 61.91 (10.17) | <0.05 |
| BMI | 27.16 (4.98) | 28.24 (4.10) | NS |
| FEV1 (l) | 1.58 (0.56) | 2.71 (0.69) | <0.00 |
| FEV1/FVC (%) | 51.52 (12.09) | 78.34 (5.50) | <0.00 |
| Prescribed METS level | 4.31 (0.81) | - | N/A |
| Best ISWT (m) | 421.73 (131.94) | 642.38 (164.53) | <0.01 |
| Total EE (Kcals) | 1480.76 (435.36) | 1638.27 (477.72) | NS |
| Step count | 6062.13 (3292.81) | 9075.57 (4158.29) | <0.01 |
| Sedentary activity (<3 METS, mins) | 638.88 (88.43) | 616.45 (65.26) | NS |
| Moderate activity (3–6 METS, mins) | 73.48 (62.12) | 100.23 (60.81) | 0.078 |
| Vigorous activity (6–9 METS, mins) | 3.53 (16.10) | 2.48 (7.59) | NS |