Why does altitude training help athletes?
Show answer & explanation
Answer: Body makes more red blood cells
Less air pressure on joints — Wrong. Air pressure doesn't significantly affect joints. Altitude training benefits come from oxygen adaptation, not pressure changes.
Thin air strengthens lungs directly — Wrong. Thin air doesn't make lungs stronger—lungs don't grow muscle. The benefit is blood adaptation: the body produces more red blood cells to capture scarce oxygen.
Body makes more red blood cells ✓ — Correct! At high altitude, less oxygen forces the body to produce more red blood cells and hemoglobin to capture available oxygen. When athletes return to sea level, this extra oxygen-carrying capacity boosts performance by 1-3%!