Table 1. Measured parameters in normoxia and hypoxia. Data are mean (±SD). rest LTP1 LTP2 Pmax N H N H N H N H P (W) 0 (00) 0 (00) 110 (20) 96 (14)*** 218 (40) 184 (22)*** 314 (50) 274 (30)*** HR (bpm) 86 (17) 86 (14) 120 (10) 126 (9) 165 (9) 163 (8) 190 (8) 185 (7)** La [mmol/l] 1.1 (.2) 1.0 (.4) 1.4 (.2) 1.4 (.4) 4.1 (.9) 3.8 (.9) 11.4 (2.3) 10.4 (2.3) VO2 (1·min-1) .43 (.12) .46 (.09) 1.66 (.26) 1.52 (.19) 2.90 (.34) 2.43 (.43)* 3.90 (.49) 3.23 (.48)* VCO2 (1·min-1) .37 (.11) .42 (0.09) 1.44 (.22) 1.47 (.11) 2.83 (.32) 2.67 (.35) 4.20 (.51) 4.08 (.49) VE [(1·min-1) 12.5 (3.2) 15.3 (4.7) 37.8 (5.2) 42.3 (5.3)* 73.4 (12.3) 76.9 (10.8) 132.1 (24.8) 138.2 (19.7) EQO2 28.7 (5.2) 32.8 (6.0) 23.1 (3.7) 28.1 (4.3)* 25.4 (4.1) 32.1 (4.0)** 34.0 (5.7) 43.4 (7.1)** EQCO2 33.5 (6.1) 35.8 (10.4) 26.7 (4.2) 29.1 (4.3)* 26.1 (4.6) 29.0 (4.3)** 31.6 (5.3) 34.1 (4.5)* RER .86 (.07) .91 (.14) .87 (.04) .98 (.16) .98 (.04) 1.13 (.20)* 1.08 (.05) 1.28 (.20)** LTP: Lactate Turn Point; Pmax: maximal power; N: normoxia; H: hypoxia; P: power; HR: heart rate; La: lactate concentration; VO2: oxygen uptake; VCO2 CO2 release; VE: ventilation; EQO2:ventilatory equivalent for O2; EQCO2: ventilatory equivalent for CO2; RER: respiratory exchange ratio. * p < 0.05 ** p < 0.01 *** p < 0.001.