Figure 1.

Panel A: Effect of increasing DO₂ on the SvO₂ through changes in the inspired fraction of oxygen (FiO₂, solid line) or cardiac output (dashed line) under normal and high oxygen supply conditions sufficient to attain optimal oxygen consumption in all peripheral compartments. Panel B: Effect of increasing DO₂ on the SvO₂ through changes in the inspired fraction of oxygen (FiO₂, solid line) or cardiac output (dashed line) under low oxygen supply conditions that caused the oxygen consumption to be supply limited.