Table 2.

Effect of acute hyperoxia at baseline and during hyperinsulinemia

	n	Normoxia	Hyperoxia
Heart rate, beats/min	18
Baseline		64 ± 2	62 ± 2†
Hyperinsulinemia		66 ± 2*	64 ± 2†*
Mean blood pressure, mmHg	17
Baseline		98 ± 2	98 ± 2
Hyperinsulinemia		98 ± 2	98 ± 2
Tidal volume, L/breath	16
Baseline		489 ± 28	532 ± 47
Hyperinsulinemia		544 ± 38	551 ± 48
Breathing frequency, breaths/min	18
Baseline		14.9 ± 0.9	13.3 ± 0.9†
Hyperinsulinemia		14.4 ± 0.8	13.6 ± 0.8†
Minute ventilation, L/min	16
Baseline		7.3 ± 0.5	7.4 ± 0.9
Hyperinsulinemia		7.5 ± 0.3	7.2 ± 0.5
Inspired O2, %	18
Baseline		21 ± 1	90 ± 2†
Hyperinsulinemia		21 ± 1	90 ± 2†

Values are means ± SE; n = 18 (9 male/9 female) unless otherwise noted. Data were analyzed by 2-way repeated-measures ANOVA, normality test (Shapiro-Wilk), equal variance test, and pairwise multiple comparison (Student-Newman-Keuls method):

^*P < 0.05 vs. baseline,

^†P < 0.05 vs. normoxia.