Pulmonary rehabilitation (n=31) | Usual care (n=29) | All participants (n=60) | |
Age | 53.26 (3.86) | 52.03 (4.84) | 52.67 (4.36) |
Smoker (never/ex/current) | 27/4/0 | 17/8/4 | 44/12/4 |
Hospitalisation in prior year | 2.00 (1.98) | 0.89 (1.47) | 1.47 (1.83) |
Exacerbations in prior year | 5.94 (5.57) | 3.83 (3.83) | 4.92 (4.89) |
Supplemental oxygen, yes/no | 11/20 | 2/27 | 13/47 |
MRC breathlessness score | 3.58 (0.76) | 3.45 (0.57) | 3.52 (0.68) |
SGRQ score | 73.20 (13.23) | 71.33 (17.30) | 72.31 (15.19) |
Six minute walk test distance (m) | 310.91 (119.65) | 319.93 (58.09) | 315.27 (94.35) |
Body mass index (kg/m2) | 31.25 (8.87) | 25.48 (4.23) | 28.46 (7.55) |
Lung function | |||
FEV1 (% predicted) | 47.29 (16.39) | 51.07 (17.32) | 49.12 (16.81) |
FVC (% predicted) | 57.23 (14.13) | 61.55 (15.83) | 59.32 (15.01) |
FEV1/FVC observed | 63.71 (11.69) | 64.48 (8.98) | 64.08 (10.39) |
TLC (% predicted) | 102.81 (25.06) | 133.69 (119.46) | 117.73 (85.64) |
RV (% predicted) | 184.87 (73.39) | 213.97 (98.29) | 198.93 (86.83) |
TLco (%) | 84.87 (25.65) | 81.59 (22.47) | 83.28 (24.02) |
Kco (%) | 115.29 (27.65) | 108.24 (29.36) | 111.88 (28.47) |
Cycle ergometry | |||
Peak workload (Watts) | 64.71 (23.96) | 73.79 (18.79) | 69.10 (21.92) |
Peak VO2 (mL/kg/min) | 10.56 (3.72) | 12.24 (3.79) | 11.36 (3.82) |
Peak VCO2 (mL/kg/min) | 11.92 (4.60) | 12.28 (4.16) | 12.09 (4.36) |
Peak RR (breaths/min) | 30.42 (5.49) | 32.52 (6.63) | 31.43 (6.11) |
Peak HR (beats/min) | 117.16 (29.10) | 114.55 (20.87) | 115.90 (25.28) |
Tlim (70%) (s) | 380.65 (138.71) | 476.21 (172.55) | 426.83 (161.96) |
Muscle | |||
RFCSA (mm2) | 424.10 (88.17) | 353.32 (56.12) | 390.51 (82.20) |
Isokinetic quadriceps strength (Nm) | 71.68 (24.52) | 66.64 (20.65) | 69.25 (22.68) |
Isokinetic quadriceps endurance (j) | 80.60 (26.78) | 77.16 (32.81) | 78.94 (29.64) |
Physical activity | N=29 | N=21 | |
Daily physical activity work (kcal) | 674.39 (544.44) | 559.81 (511.78) | 626.27 (528.72) |
Daily physical activity distance (km) | 7.16 (4.05) | 6.69 (4.36) | 6.97 (4.14) |
Daily step count | 10 192 (5767) | 9513 (6159) | 9915 (5876) |
Values are mean (SD) Tlim (70%) cycle endurance time at 70% maximum workload.
FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; Kco, CO transfer coefficient; MRC, Medical Research Council; RFCSA, rectus femoris cross-sectional area ; RV, residual volume; SGRQ, St George’s Respiratory Questionnaire; TLC, total lung capacity; TLco, CO transfer factor.