Table 2.

Non‐neural physiological data

	Baseline	5% CO2	P
Breath Rate	11.20 (1.00)	13.35 (1.28)	0.124
EtCO2	42.70 (1.81)	48.95 (1.45)	<0.001
Heart Rate	66.90 (2.38)	69.67 (2.38)	0.156
SpO2	98.10% (0.35%)	97.58% (0.39%)	0.443

Mean (SEM). Breath rate in breaths per minute. Heart rate in beats per minute. P values were based on paired‐samples t‐tests.

EtCO₂, end‐tidal CO₂ in mm Hg. SpO₂, peripheral oxygen saturation in percent hemoglobin saturation.