Mean (SD) baseline physiological characteristics of patients who completed the study (n = 32)
| Parameter | PR-SHAM | PR-IMT | Control |
|---|---|---|---|
| EX, ex-smoker; NS, never smoked; FEV1, forced expiratory volume in 1 second; VC, vital capacity; TLC, total lung capacity; RV, residual volume; Tlco, lung carbon monoxide transfer factor; Kco, carbon monoxide transfer coefficient; Pimax, Pemax, maximum inspiratory and expiratory pressures; V˙o2, oxygen consumption. | |||
| M/F | 4/7 | 2/10 | 0/9 |
| Smoking status | 4 EX/7 NS | 2 EX/10 NS | 2 EX/7 NS |
| Age (years) | 63.1 (3.5) | 57.3 (2.4) | 62.9 (3.9) |
| FEV1 (l) | 1.44 (0.77) | 1.23 (0.74) | 1.49 (0.61) |
| FEV1 (% predicted) | 64 | 54 | 69 |
| FEV1/VC% | 57.0 (0.20) | 54.1 (0.20) | 66.2 (0.09) |
| RV (l) | 2.14 (0.97) | 2.51 (0.95) | 1.83 (0.87) |
| RV (% predicted) | 111 | 133 | 99 |
| TLC (l) | 5.04 (1.68) | 4.92 (1.10) | 4.26 (1.37) |
| TLC (% predicted) | 97 | 98 | 88 |
| Tlco (mmol/min/kPa) | 6.32 (2.07) | 5.88 (1.61) | 5.92 (2.13) |
| Tlco (% predicted) | 79 | 76 | 76 |
| Kco (mmol/min/kPa/l) | 1.65 (0.44) | 1.63 (0.29) | 1.66 (0.35) |
| Kco (% predicted) | 86 | 82 | 82 |
| Pimax (cm H2O) | 66.4 (22.0) | 78.0 (17.7) | 77.2 (24.7) |
| Pimax (% predicted) | 87 | 98 | 103 |
| Pemax (cm H2O) | 97.3 (37.5) | 75.8 (28.5) | 87.4 (22.9) |
| Pemax (% predicted) | 66 | 53 | 63 |
| Peak V˙o2 (ml/min/kg) | 15.6 (6.2) | 19.8 (8.3) | 19.0 (5.0) |
| Peak V˙o2 (% predicted) | 77 | 88 | 92 |