Table 1—

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

Patients n2329
Age yr67±265±1ns
Sex (M:F)17:626:3ns
Smoking history, pack-years48±454±4ns
Weight kg65±267±2ns
Height cm161s±2166±1ns
Body mass index kg·m−225±0.724±0.9ns
FEV1 % pred58±3.531±1.7<0.001
FVC % pred94±475±4<0.001
FEV1 FVC % pred62±244±2<0.001
PI,max % pred66±358±3ns
MVV L47±329±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