Table 3.
Patients’ ultrasonographic characteristics before and after pulmonary rehabilitation
| N=25 | Pre-PR | Post-PR | P-value |
|---|---|---|---|
|
|
|
|
|
| Diaphragm zapp (mm) | |||
| Lzapp TLC | 26 (18–31) | 23 (19–26) | 0.002 |
| Lzapp FRC | 38 (32–41) | 41 (35–44) | <0.001 |
| Szapp TLC | 5 (3–6) | 4 (3–5) | 0.001 |
| Szapp FRC | 4 (3–4) | 3 (3–4) | 0.027 |
| Diaphragmatic excursion (mm) | |||
| Quiet breathing | 23 (16–27) | 27 (22–31) | <0.001 |
| Deep breathing | 36 (25–53) | 50 (35–58) | <0.001 |
| Rectus femoris area (m2) | 4 (3–4) | 4 (3–5) | <0.001 |
Note: Data are presented as median (25th–75th percentiles).
Abbreviations: PR, pulmonary rehabilitation; zapp, diaphragm zone of apposition; Lzapp, length of diaphragm zone of apposition; Szapp, thickness of diaphragm zone of apposition; TLC, total lung capacity; FRC, functional residual capacity.