Table 1

 Subject characteristics, pulmonary function, and peak exercise values obtained during incremental exercise

Measured% predicted
Values presented are mean (SD).
FEV1, forced expiratory volume in 1 second; FVC, forced vital capacity; TLC, total lung capacity; FRC, functional residual capacity; Tlco, carbon monoxide transfer factor; V˙o2peak, peak O2 uptake; V˙epeak, peak expired ventilation; HRpeak, peak exercise heart rate.
Age (years)68 (8)
Height (cm)165 (12)
Body mass (kg)68.7 (14.0)
Pulmonary function
    FEV1 (l)1.35 (0.50)52 (15)
    FVC (l)2.86 (1.15)87 (8)
    FEV1/FVC (%)48 (7)
    TLC (l)6.64 (1.87)126 (18)
    FRC (l)4.40 (1.21)144 (20)
    Tlco (ml/min/mmHg)9.32 (0.76)46 (13)
Incremental exercise test
    V˙o2peak (ml/kg/min)14.8 (2.3)61.3 (14.5)
    Peak power (W)57 (25)
    V˙epeak (l/min)38.4 (15.3)82.0 (8.4)
    HR peak (beats/min)126 (13)82.6 (9.6)