Effect of hypoxia and augmented FICO₂ on metabolic variables, heart rate, and perceived effort of exertion during incremental cycling to exhaustion.

<p>Left panels: group data in normoxia (mean ± SD); right panels: group data in hypoxia. Note: these graphs are only intended for visualizing the changes in physiological parameters during incremental cycling. Statistical analyses were carried out using the average variable during the exercise session (see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0081130#pone-0081130-g001" target="_blank">Figure 1</a>).