Yes, playing sports at high altitudes, such as in Denver for NFL teams, can indeed have a significant impact on athletic performance, particularly for those not accustomed to such conditions.
Altitude can affect performance in several ways:
1. Reduced Oxygen Levels: At higher altitudes, the air is thinner, meaning there are fewer oxygen molecules per volume of air. Our body relies on oxygen to produce energy, so with less oxygen available, the body has to work harder to perform the same tasks.
2. Shortness of Breath and Fatigue: Due to the reduced oxygen levels, athletes may experience shortness of breath and tire more quickly. This could potentially lead to a decline in endurance and overall performance.
3. Altitude Sickness: In some cases, players not accustomed to high altitude might experience altitude sickness, which includes symptoms like headache, nausea, and dizziness.
4. Hydration and Nutrition: The body can also dehydrate more quickly at high altitudes, plus athletes may need extra calories due to the higher metabolic demand, impacting their nutrition management.
5. Red Blood Cell Production: Prolonged exposure to high altitudes boosts the production of red blood cells, which helps improve oxygen-carrying capacity. However, short-term visitors won't have this benefit.
Teams based in Denver, like the Denver Broncos for instance, are naturally acclimated to the conditions, which can provide them with a home-field advantage. Visiting teams, on the other hand, often try to minimize the impact of altitude by arriving as late as possible before the game, limiting the amount of time their bodies have to react to the altitude.
From a research perspective, results are mixed concerning the exact degree of impact altitude has on performance, with myriad variables involved. Still, it certainly poses a challenge, suggesting the importance of proper strategies for altitude acclimatization, hydration, and nutrition.