Parameter | Exercise tests | |
Completed | Incomplete | |
Subjects n M/F | 24/15 | 10/6 |
Age yrs | 64±1 | 67±1 |
Height cm | 167±2 | 170±3 |
Weight kg | 68±2 | 65±4 |
TLC % pred | 147±4 | 141±3 |
FRC % pred | 198±6 | 189±5 |
RV % pred | 241±10 | 238±11 |
FVC L | 2.4±0.1 | 2.7±0.2 |
FVC % pred | 71±3 | 77±5 |
FEV1 L | 0.7±0.1 | 0.8±0.1 |
FEV1 % pred | 32±2 | 32±2 |
FEV1/FVC % | 33±2 | 30±2 |
VA % pred | 73±3 | 72±4 |
DL,CO % pred | 37±2 | 32±3 |
Pa,O2 mmHg | 70±2 | 69±2 |
Pa,CO2 mmHg | 44±1 | 42±1 |
Sa,O2 % | 93±1 | 93±1 |
M: male
F: female
TLC: total lung capacity
FRC: functional residual capacity
RV: residual volume
FVC: forced vital capacity
FEV1: forced expiratory volume in one second
VA: alveolar volume by helium dilution
DL,CO: carbon monoxide diffusing capacity of the lung
Pa,O2: arterial oxygen tension
Pa,CO2: arterial carbon dioxide tension
Sa,O2: arterial oxygen saturation