Question

Some athletes preparing for a long distance race train at high altitude for several weeks. The availability of oxygen at high altitude is lower so the body responds by increasing the number of red blood cells. The number of red blood cells remains high when the athletes return to lower altitude to compete.
Explain how having more red blood cells is an advantage to athletes who take part in long distance races.

Answer 1

Explanation:

As elite athletes acclimate to high altitude, they acquire more red blood cells which allows their blood to carry more oxygen. When they compete at lower altitudes, they get a natural boost to the muscles when additional oxygen is available.