Table 3. Comparison of ventilatory parameters and heart rate (HR) before and after breathing assistance.
| Parameter | Before | After | p value (ES) |
|---|---|---|---|
| VT (l) | 0.63 ± 0.15 | 0.65 ± 0.20 | 0.906 |
| V̇E (l/min) | 10.2 ± 2.63 | 9.86 ± 3.27 | 0.188 |
| Mean flow (ml/s) | 0.29 ± 0.09 | 0.28 ± 0.11 | 0.242 |
| V̇O2 (l/min) | 0.22 ± 0.07 | 0.19 ± 0.06 | 0.003* (0.53) |
| V̇CO2 (l/min) | 0.17 ± 0.04 | 0.15 ± 0.05 | 0.003* (0.52) |
| ETCO2 (%) | 3.98 ± 0.63 | 3.70 ± 0.62 | 0.001* (0.65) |
| f (breaths/min) | 16.2 ± 4.17 | 15.7 ± 4.13 | 0.331 |
| HR (beats/min) | 74.3 ± 7.31 | 75.3 ± 5.88 | 0.600 |
Data presented as mean ± SD. VT: tidal volume; V̇E: minute ventilation; Mean flow: mean expiratory flow rate; V̇O2: oxygen consumption; V̇CO2: carbon dioxide production; ETCO2: end-tidal carbon dioxide concentration; f: breathing frequency; ES: effect size. *Statistically significant.