Consumo de oxígeno VI - Entrega de oxígeno

During physical exercise, hemoglobin's affinity for oxygen decreases, resulting in a greater release of oxygen to the active muscle. This phenomenon is fundamental for improving metabolic performance and sustaining energy production in the mitochondria. The main determinants of this shift are the increase in muscle temperature, a consequence of heat production during exertion; the increase in carbon dioxide (CO₂), generated by increased cellular metabolism; the decrease in pH due to the increase in protons and acidity, especially during intense exercise; and the increase in 2,3-diphosphoglycerate (2,3-DPG) within the erythrocyte, which reduces hemoglobin's affinity for oxygen. These changes allow oxygen to be released more easily precisely to the tissues that need it most. In situations such as intense exercise, hypoxia, or altitude training, this mechanism becomes even more relevant for optimizing oxygen delivery and improving aerobic capacity. Follow me on Instagram: @henryleon_md and visit my website https://henryleonmd.com/