Table 1.
Comparison of respiratory parameters and breathing pattern for each respiratory rate (n = 38; data are presented as mean ± SD [confidence interval 95%]).
| RR | 30 cycles/min | 35 cycles/min | 40 cycles/min |
|---|---|---|---|
| RR (cycles/min) | 29.35 ± 0.83 [29.08; 29.62] | 35.23 ± 1.16 [34.85; 35.61] | 40.31 ± 0.84 [40.03; 40.58] |
| IT (s) | 0.46 ± 0.09 [0.43; 0.49] | 0.46 ± 0.08 [0.43; 0.49] | 0.43 ± 0.07 [0.41; 0.46] |
| ET (s) | 1.58 ± 0.10 [1.54; 1.61] | 1.24 ± 0.09 [1.21; 1.27] | 1.06 ± 0.08 [1.03; 1.08] |
| PIF (mL) | 138.6 ± 21.75 [131.4; 145.7] | 141.2 ± 21.93 [134.0; 148.4] | 134.6 ± 22.23 [127.3; 142.0] |
| PEF (mL) | 31.14 ± 8.13 [28.47; 33.81] | 35.52 ± 11.42 [31.77; 39.28] | 35.59 ± 11.74 [31.73; 39.45] |
| TV (mL) | 36.63 ± 7.31 [34.23; 39.03] | 37.44 ± 7.43 [34.99; 39.88] | 33.16 ± 7.37 [30.74; 35.58] |
| MV (L/min) | 1.07 ± 0.21 [1.01; 1.14] | 1.32 ± 0.25 [1.23; 1.40] | 1.34 ± 0.31 [1.24; 1.44] |
| R (cmH2O/L−1.s−1) | 290.1 ± 92.77 [320.6; 259.6] | 258.0 ± 84.70 [285.8; 230.1] | 253.5 ± 82.50 [280.6; 226.4] |
| C (mL/cmH2O) | 1.85 ± 0.99 [1.52; 2.17] | 1.78 ± 0.65 [1.57; 2.00] | 1.78 ± 0.84 [1.50; 2.06] |
Respiratory rate (RR), inspiratory time (IT), expiratory time (ET), peak inspiratory flow (PIF), peak expiratory flow (PEF), tidal volume (TV), minute ventilation (MV), resistances (R), compliance (C).