Table 1. Anthropometric, physiological and performance/training characteristics of the two participants before LHTH

		Participant 1	Participant 2
Anthropometric and physiological characteristics	Age (years)	28	33
	Height (m)	1.75	1.76
	Body mass (kg)	59	58
	Body mass index (kg·m-2)	19.3	18.7
	Fat mass (%)	6.5	4.5
	VO2max (mL·kg-1·min -1)	75.0	82.3
	Velocity at VO2max (km·h-1)	16.0	22.8
	Hypoxic training camp experience * (n)	28	35
Performance characteristics	Discipline	20-km Race Walking	Marathon
	World ranking	Top 15	Top 20
	Difference between best performance and world’s number 1 performance for the year (%)	-2.8 %	- 1.9 %
	Race pace (min·km-1)	4 min 00 s	3 min 02 s
	Race pace (% vVO2max)	93.7	86.7
Training characteristics	Intensity zone 1, 70-80 % of race pace (min·km-1)	5 min 43 s – 5 min 00 s	4 min 20 s – 3 min 47 s
	Intensity zone 1 (% vVO2max)	65.6 – 75.0	60.7 – 69.4
	Intensity zone 2, 81-90 % of race pace (min·km-1)	4 min 56 s – 4 min 26 s	3 min 44 s – 3 min 22 s
	Intensity zone 2 (% vVO2max)	75.9 – 84.3	70.2 – 78.1
	Intensity zone 3, >91 % of race pace (min·km-1)	<4 min 23 s	<3 min 20 s
	Intensity zone 3 (% vVO2max)	>85.3	>78.9

* all training camps considered last between 21 and 28 days. vVO_2max = velocity at VO_2max