Table 4 Chest wall motion during exercise at 80% maximum heart rate (median and IQR)
From: Changes in chest wall motion with removal of Nuss bar in repaired pectus excavatum – a cohort study
Bar in situ | Bar removed | Effect size | p value | |
|---|---|---|---|---|
Respiratory rate | 32 (28–37) | 34 (24–36) | 0.089 | 0.110 |
Tidal volume (Vt, ml) | 1555 (1288–1731) | 1643 (1384–1847) | 0.089 | 0.110 |
Vt ribcage | 628 (455–655) | 629 (577–760) | 0.076 | 0.173 |
Vt diaphragm | 275 (178–275) | 323 (246–369) | 0.115 | 0.038 |
Vt Abdomen | 771 (624–864) | 708 (473–708) | 0.049 | 0.374 |
% ribcage | 37.2 (31.3–40.2) | 37.4 (34.4–44.3) | 0.049 | 0.374 |
% diaphragm | 16.1 (13.7–17.8) | 20.2 (14.5–21.8) | 0.109 | 0.051 |
% abdomen | 49.1 (45.0–53.5) | 42.3 (33.8–50.4) | 0.076 | 0.173 |