The Olympic stage is set, and athletes are gearing up for a breathtaking battle at dizzying heights. But how do these elite competitors prepare their bodies for the unique challenges of high-altitude performance?
It's not your typical training regime. Some athletes hit the gym, some conquer vast distances, and some even train in the sea. But for those aiming for the Olympic podium, the journey often involves ascending to staggering heights, where the air is thinner and each breath is a challenge.
The Milano Cortina 2026 Olympics will showcase venues that soar to new extremes. From the Tesero cross-country stadium at 830 meters to the breathtaking Vertigine downhill start at 2,380 meters, athletes will be pushed to their limits. And that's not all—lifts will carry them to the top of Tofana, reaching a staggering 3,244 meters above sea level.
But here's the twist: At these altitudes, the rules of sports medicine change. It's not just about strength, speed, and endurance anymore. Instead, it's a delicate dance with blood oxygen levels and cardiovascular function, according to experts in extreme medicine from Northeastern University.
"When you're at altitude, each breath contains fewer oxygen molecules due to lower air pressure," explains Joshua Merson, an associate clinical professor. "Your body adapts by breathing harder and faster, and your heart races to deliver oxygen-rich blood." But this adaptation has its risks. If the ascent is too rapid, the body may struggle to keep up, leading to a breakdown, as Merson warns.
And this is where it gets tricky: Hypoxia, a condition caused by oxygen deprivation, can trigger an inflammatory response, disrupting blood pressure regulation. This can result in fluid leakage, according to Merson. Altitude sickness, a more severe form of hypoxia, can strike with symptoms like a hangover—headache, nausea, and fatigue. But these signs can be subtle or progress to more serious issues if left unchecked.
A surprising fact: Hypoxia isn't exclusive to high altitudes. Long flights, intense training, heat stress, and illness can all induce hypoxia at ground level. Sarah Spelsberg, director of U.S. Operations at World Extreme Medicine, explains that the body responds to hypoxia by increasing heart rate, altering metabolism, and prioritizing oxygen supply to vital organs. However, problems arise when oxygen demand surpasses supply.
Understanding hypoxia is a game-changer for athletes. It encourages them to pace themselves, recognize early signs of overtraining or illness, and implement strategic recovery methods. "Hypoxia awareness is key to preventing injuries and burnout while sustaining long-term performance," Spelsberg emphasizes.
So, how do medical professionals spot hypoxia in athletes at these events? Merson reveals that subtle cues are key. A usually talkative person may become quiet, or a skilled athlete might struggle with their gear or breathe heavily on flat ground. These signs can precede the more obvious symptoms of altitude sickness.
A historical example: At the 1968 Mexico City Olympics, held at 2,250 meters, Australian runner Ron Clarke fainted after the 10,000-meter race, and U.S. swimmer Suzy Jones, who trained at high altitudes, experienced sickness that affected her performance. Merson notes that fitness doesn't guarantee immunity to altitude sickness, and genetics may also be a factor.
The altitude advantage: Not all mountains are created equal. New England's highest peaks, like Mount Washington, don't reach the severe altitude stress levels of Colorado's training venues, which often exceed 10,000 feet. The thin air at these higher altitudes can significantly impact performance and recovery.
As the Olympic flame ignites, athletes and medical staff alike must navigate the complex relationship between altitude and performance. It's a delicate balance between pushing boundaries and respecting the limits of the human body. What strategies will athletes employ to conquer these lofty heights? And how will medical teams ensure their safety? The stage is set for a thrilling and challenging Olympic journey.
