Anthropometric, pulmonary, and respiratory muscle data at rest of 23 non-flow limited (non-FL) and 29 flow limited (FL) chronic obstructive pulmonary disease patients
| Non-FL | FL | p-value | |
| Patients n | 23 | 29 | |
| Age yr | 67±2 | 65±1 | ns |
| Sex (M:F) | 17:6 | 26:3 | ns |
| Smoking history, pack-years | 48±4 | 54±4 | ns |
| Weight kg | 65±2 | 67±2 | ns |
| Height cm | 161s±2 | 166±1 | ns |
| Body mass index kg·m−2 | 25±0.7 | 24±0.9 | ns |
| FEV1 % pred | 58±3.5 | 31±1.7 | <0.001 |
| FVC % pred | 94±4 | 75±4 | <0.001 |
| FEV1 FVC % pred | 62±2 | 44±2 | <0.001 |
| PI,max % pred | 66±3 | 58±3 | ns |
| MVV L | 47±3 | 29±2 | <0.001 |
Values are presented as mean±sem
FEV1: forced expiratory volume in one second
FVC: forced vital capacity
PI,max: maximal inspiratory pressure
MVV: maximal voluntary ventilation