Table 1. Post minus pre-intervention changes for each measure, for LowHH (low altitude training), LowHH+NHnight (combined low altitude training and simulated altitude exposure) and control (CON). Values are expressed as mean (±standard deviation).

Variable	LowHH (n = 10)	LowHH + NHnight (n = 8)	CON (n = 10)
Hbmass (g)	9.8 (10.7)	22.5 (17.6)	-10.2 (42.9)
VO2max (mL·min·kg-1)	2.5 (2.6)	2.5 (3.1)	.61 (2.1)
Time to exhaustion (min)	.7 (.6)	.8 (.5)	NA
Lactate threshold (km·h-1)	.3 (.4)	.1 (.3)	.8 (1.1)
Submaximal VO2 (mL·min·kg-1)	-.2 (1.4)	-.4 (1.3)	-2.2 (1.5)
Maximal HR (bpm)	-3.8 (3.8)	-3.1 (2.0)	-3.0 (4.8)
Maximal La (mmol·L-1)	.1 (1.4)	1.1 (2.0)	-.4 (3.5)
vVO2max (km·h-1)	.5 (.3)	.7 (.7)	.7 (.4)
Submaximal HR (bpm)	-6.6 (3.8)	-9.20 (6.1)	-12.0 (12.4)