Table 2.

Grouped data for timing, ventilation, and resistance during the control periods of all BPPV trials on room air and oxygen, n = 10

Variables	Room air	Oxygen	P Value
TI, s	2.2 ± 0.2	2.2 ± 0.2	ns
TE, s	2.1 ± 0.5	2.3 ± 0.2	ns
TTOT, s	4.3 ± 0.3	4.4 ± 0.2	ns
TI/TTOT	0.8 ± 0.3	0.7 ± 0.2	ns
fR, breath/min	14.4 ± 0.8	14.2 ± 0.8	ns
VT, L	0.6 ± 0.0	0.6 ± 0.0	ns
VE, L/min	7.8 ± 0.4	8.1 ± 0.6	ns
$\text{P}\text{E}{\text{T}}_{\text{C}{\text{O}}_2}$, mmHg	38.3 ± 0.9	37.9 ± 0.8	ns
$\text{P}\text{E}{\text{T}}_{{\text{O}}_2}$, mmHg	97.2 ± 1.5	277.6 ± 7.8	0.004
$\text{F}{\text{I}}_{{\text{O}}_2}$	0.48 ± 0.01	0.21 ± 0.00	<0.001
$\text{S}{\text{a}}_{{\text{O}}_2}$, %	95.7 ± 0.8	98.3 ± 0.3	0.002
Eupneic inspiratory RUA (cmH2O/L/s (n = 8)	5.4 ± 0.8	5.9 ± 0.9	ns

Results are means ± SE. T_I, inspiratory time; T_E, expiratory time; T_TOT, total time of respiratory cycle; fR, respiratory frequency; V_E, minute ventilation; $\text{F}{\text{I}}_{{\text{O}}_2}$, fraction of inspired O₂; $\text{P}\text{E}{\text{T}}_{\text{C}{\text{O}}_2}$, end-tidal carbon dioxide; $\text{P}\text{E}{\text{T}}_{{\text{O}}_2}$, end-tidal oxygen; R_UA, inspiratory resistance; $\text{S}{\text{a}}_{{\text{O}}_2}$, arterial O₂ saturation; T_E, expiratory time; V_T, tidal volume.