Table 1.

Whole-body measurements and oxygen uptake and power output during bicycle exercise and one-leg knee-extensor exercise

	Copenhagen		Mt Chacaltaya
	0 m normoxia	0 m acute hypoxia	5260 m chronic hypoxia	5260 m acute normoxia
Weight (kg)	76 ± 2.9	—	69 ± 1.8§	—
Haemoglobin (g dl−1)	14.3 ± 0.5	—	18.7 ± 0.5§	—
Haematocrit (%)	45.3 ± 0.6	—	52.1 ± 0.5§	—
${\stackrel{.}{V}}_{O2,\text{max}}$ (l min−1)	4.3 ± 0.3	2.7 ± 0.2§	2.8 ± 0.2§	—
${\stackrel{.}{V}}_{O2,\text{max}}$ (ml min−1 (kg body mass)−1)	56 ± 2	35 ± 2§	40 ± 2*§	—
Wmax, bicycle (W)	339 ± 15	233 ± 10§	245 ± 5§	332 ± 5#
Wmax, bicycle (W (kg body mass)−1)	4.6 ± 0.2	3.1 ± 0.1§	3.6 ± 0.1*§	4.8 ± 0.1#
Wmax, one-leg knee extensor (W)	—	—	77 ± 2	75 ± 5

Values are means ±s.e.m. of six subjects.

^*Significant difference between 5260 m chronic hypoxia vs. 0 m acute hypoxia and 5260 m acute normoxia vs. 0 m normoxia.

^§Significant difference between 5260 m chronic hypoxia vs. 0 m normoxia and 0 m acute hypoxia vs. 0 m normoxia.

^#Significant difference between 5260 m acute normoxia vs. 5260 m chronic hypoxia.