Table 1

 Baseline anthropometric, spirometric, lung function, exercise and resting breathing pattern data in study patients (n = 18)

Mean (SD)% predicted (SD)
M/F15/3
Age (years)67.1 (6.3)
Body mass index (kg/m2)24.3 (4.2)
Lung function
    FEV1 (l)1.14 (0.41)40.6 (15.0)
    FVC (l)2.74 (0.72)74.5 (17.2)
    FEV1/FVC (%)42.4 (11.6)
    FEF25% (l/s)1.20 (0.90)19.2 (13.6)
    FEF75% (l/s)0.20 (0.07)17.8 (5.9)
    TLC (l)7.87 (1.04)125.7 (11.6)
    FRC (l)5.86 (1.10)175.8 (26.0)
    RV (l)4.80 (1.03)215.6 (47.1)
    IC (l)2.02 (0.47)68.2 (16.7)
Resting breathing pattern
    Vt (l)0.805 (0.221)
    fr (breaths/min)23.9 (9.5)
    Ti (s)1.17 (0.29)
    Te (s)1.99 (0.73)
    Vt/Ti (l/s)0.712 (0.081)
    Vt/Te (l/s)0.432 (0.102)
    V˙e (l/min)15.9 (0.8)
Exercise performance
    Wmax (watt)66.8 (16.2)
    Exercise time at 70% Wmax (s)318 (224)