Effect of resistive loading
SIDS parents (n = 9) | Controls (n = 9) | Change from baseline to resistance (parents – controls) | p value for differences | |||
---|---|---|---|---|---|---|
Before | During | Before | During | |||
Ti = inspiratory time, Te = expiratory time; fR = respiratory frequency; Vt = tidal volume; Ve = minute volume. | ||||||
Ti (s) | 1.26 | 2.56 | 1.65 | 3.95 | −0.87 | 0.021 |
(1.21, 1.71) | (1.69, 2.68) | (1.32, 2.04) | (3.00, 4.26) | (−1.75, −0.14) | ||
Te (s) | 2.16 | 2.84 | 2.69 | 5.42 | −1.3 | 0.015 |
(1.70, 2.48) | (2.27, 3.98) | (2.23, 3.37) | (3.68, 6.73) | (−2.15, −0.46) | ||
fR (breaths/min) | 17.9 | 11.8 | 14.4 | 6.9 | −0.4 | 0.374 |
(15.0, 21.0) | (9.3, 15.8) | (11.0, 17.6) | (5.8, 9.1) | (−2.7, 4.5) | ||
Vt (l) | 0.64 | 0.66 | 0.68 | 1.09 | 0.05 | 0.953 |
(0.47, 0.67) | (0.59, 1.04) | (0.57, 0.92) | (0.74, 1.30) | (−0.25, 0.17) | ||
Ve (l/min) | 10.00 | 8.17 | 9.13 | 7.06 | 1.02 | 0.051 |
(8.83, 11.05) | (7.24, 12.09) | (8.90, 11.5) | (5.87, 7.48) | (0.14, 5.51) | ||
Vt/Ti (l/s) | 23.4 | 18.6 | 25.5 | 17.0 | 2.62 | 0.021 |
(22.8, 29.7) | (15.3, 29.9) | (24.1, 28.8) | (13.9, 19.6) | (0.17, 12.31) |