Table 1.
Characteristics of the patients according to their nutritional status.
| Characteristics | Overweight/Obese | Normal weight | Underweight | ANOVA (p) |
|---|---|---|---|---|
| Sex (M/F) | 6/2 | 11/6 | 6/1 | - |
| Age (years) | 63 ± 4 | 63 ± 2 | 68 ± 4 | 0.60 |
| FEV1 (%) | 34 ± 4 | 34 ± 2 | 27 ± 4 | 0.30 |
| FEV1/FVC (%) | 64 ± 6 | 59 ± 4 | 49 ± 4 | 0.19 |
| MVV (%) | 36 ± 4 | 31 ± 3 | 27 ± 4 | 0.31 |
| Weight (kg) | 80 ± 4 *† | 59 ± 2 ‡ | 44 ± 3 | <0.01 |
| Height (m) | 1.68 ± 0.03 | 1.61 ± 0.03 | 1.61 ± 0.04 | 0.23 |
| BMI (kg/m2) | 28.4 ± 0.8 *† | 22.0 ± 0.5 ‡ | 17.1 ± 0.4 | <0.01 |
| FFMI (kg/m2) | 17.3 ± 0.3 *† | 15.3 ± 0.3 ‡ | 13.7 ± 0.5 | <0.01 |
| FMI (kg/m2) | 11.1 ± 0.9 *† | 7.6 ± 0.9 | 3.4 ± 0.5 | <0.01 |
| Walking distance (%) | 90 ± 8 *† | 79 ± 6 | 57 ± 8 | 0.03 |
| PImax (%) | 63 ± 7 *† | 57 ± 5 | 35 ± 8 | 0.03 |
| PEmax (%) | 62 ± 8 | 50 ± 5 | 50 ± 8 | 0.43 |
Results presented as mean ± SEM.
*, p < 0.05 overweight/obese vs. normal weight;
†, p < 0.05 overweight/obese vs. underweight;
‡, p < 0.05 normal weight vs. underweight. FEV1, forced expiratory volume at 1 s; FEV1/FVC, ratio between forced expiratory volume in 1 s and forced vital capacity; MVV, maximal voluntary ventilation; BMI, body mass index; FFMI, fat- free mass index; FMI, fat mass index; PImax, maximal inspiratory pressure; PEmax, maximal expiratory pressure.