Table 1.

Absolute values are means ±  SD (n = 9). Mean sigmoidal curve data: Midpoint (mmHg) and inclination (slope) of the sigmoid curve

	NN	HH 3000 m	HN	NH	HH 5500 m
Midpoint	35.7 ± 3.3	27.3 ± 2.0*	21.6 ± 1.9*	33.7 ± 1.7#	19.6 ± 2.0*§†
Slope	0.23 ± 0.12	0.52 ± 0.27*	0.46 ± 0.12(*)	0.35 ± 0.19	0.66 ± 0.33*†

In normobaric normoxia (NN, Dübendorf altitude level of 440 m), hypobaric hypoxia (HH, at altitude level of 3,000 m and 5,500 m), hypobaric normoxia (HN, altitude level of 5,500 m in normoxia), and normobaric hypoxia (NH, altitude simulation of 5,500 m in normobaria). Statistical analysis was performed separately for altitude comparison in HH (NN, 3,000 m and 5,500 m HH) and for conditions comparison (NN, HN, NH, and 5,500 m HH). (*) p = .069, *p<.05 different from NN conditions; §p < .05 different from 3,000 m HH; #p < .05 different from HN; and †p < .05 different from NH.