FIGURE 7.

Effects of “live high:train low” training regimen in 10 endurance-trained cyclists on Hb mass and mean power output during a 26-km time trial

The cyclists were exposed to daily normobaric hypoxia simulating 3,000-m altitude for 16 h/day for 28 nights and trained daily in normoxia. Note the high individual variability in the changes in Hb mass and mean power output during the time trials. The dashed lines represent the random error of the CO rebreathe test used for Hb mass. The group mean changes in Hb mass, time trial mean power output or performance, and V̇o_{2 max} (not shown) were not significantly different from those in a placebo group (n = 6) exposed to normoxia. Figure was reproduced from Ref. 110 with permission.