New Research Quantifies How Altitude Impacts Athletic Performance
A study of 900,000 performances reveals how elevation changes speed in track events.
1Quantifying Altitude Effects
Researchers Atle and Simen Guttormsen analyzed over 900,000 individual performances from 382 NCAA indoor track venues. Spanning a 14-year period, this study aimed to determine the precise impact of elevation on athletic speed. The data accounts for variables like track design and seasonal timing to isolate the specific effects of altitude.
2The Speed-Oxygen Crossover
Athletes experience a performance crossover at distances beyond 400 meters. Up to that point, reduced air resistance at altitude provides a speed advantage. However, as race distances increase, the lack of oxygen becomes the dominant factor. This transition marks the point where aerodynamic benefits are outweighed by the physiological costs of thin air.
3Distance Running Penalties
For events 3,000 meters and longer, the negative impact of altitude levels off at approximately 2.7 percent per 1,000 meters of elevation. This translates to a roughly 30-second disadvantage for 5,000-meter runners. Aerodynamic drag becomes largely irrelevant at these distances, making the altitude penalty almost entirely a result of reduced oxygen availability.
4Gender-Specific Performance Gaps
The 800-meter event reveals a notable disparity, with women experiencing a 0.92 percent disadvantage compared to 0.50 percent for men. Because men typically run faster, they benefit more from reduced drag. Conversely, women spend more time on the track, making them more susceptible to the oxygen-deprivation effects of higher elevations.
5NCAA Policy Changes
The NCAA recently eliminated its altitude conversion factors for track qualifying standards. Officials argued that the previous adjustments lacked scientific rigor. While the Guttormsens suggest that sex-specific conversion factors could improve accuracy, the current governing rules have abandoned these adjustments entirely, leaving athletes to compete without standardized time corrections for elevation.
6Individual Physiological Variability
Altitude response is highly individual, influenced by genetics, developmental history, and training environment. Research indicates that endurance athletes may be more susceptible to oxygen deficits than untrained individuals. This occurs because highly trained hearts pump blood so rapidly that it may not fully saturate with oxygen while passing through the lungs.
7Hidden Altitude Impacts
Even moderate elevations, such as the 1,900 feet found in Canberra, can reduce VO2 max by approximately five percent. Athletes often fail to account for these subtle changes, leading to burnout when attempting to maintain sea-level paces. Recognizing these effects is crucial for adjusting expectations when competing in cities like Calgary or Edmonton.
8Practical Implications for Athletes
Understanding these physiological mechanisms allows athletes to adjust their pacing strategies when competing at higher altitudes. By acknowledging that performance naturally fluctuates with elevation, runners can avoid the common mistake of overexertion. This data provides a baseline for athletes to better interpret their race results and manage their physical efforts effectively.
Original article: Outside — New Research Quantifies How Altitude Impacts Athletic Performance