Related Experiment Videos
Maximal aerobic power in high-altitude runners
L P Greksa1, H Spielvogel, L Paredes-Fernandez
1Department of Anthropology, Case Western Reserve University.
Annals of Human Biology
|July 1, 1993
Summary
Recreational runners living at high altitudes in La Paz, Bolivia, demonstrate high maximal aerobic power (VO2max). Their VO2max levels are comparable to low-altitude athletes, indicating effective adaptation to hypobaric hypoxia.
Area of Science:
- Physiology
- Altitude Training
- Cardiorespiratory Fitness
Background:
- High-altitude environments present unique physiological challenges due to reduced oxygen availability (hypobaric hypoxia).
- Understanding the cardiorespiratory adaptations of native high-altitude populations is crucial for sports science and medicine.
Purpose of the Study:
- To assess maximal aerobic power (VO2max) in recreational middle- and long-distance runners residing at high altitude in La Paz, Bolivia.
- To compare the VO2max of these high-altitude natives with previously reported data from both high- and low-altitude populations.
Main Methods:
- Maximal aerobic power (VO2max) was measured in seven male and one female recreational runners living at 3600 m.
- All participants were native high-altitude residents (born and raised above 2500 m).
Main Results:
- Mean VO2max for male runners was 60.8 ml/kg/min, and for the female runner was 55.5 ml/kg/min.
- These VO2max values are higher than previously reported for any high-altitude natives (trained or untrained).
- The VO2max levels were comparable to recreational athletes from low-altitude regions.
Conclusions:
- Native Andean highlanders, including recreational athletes, possess cardiorespiratory systems capable of adapting to hypobaric hypoxia.
- This adaptation to altitude may involve both developmental and genetic factors.
- High VO2max in high-altitude natives suggests successful physiological responses to chronic hypoxic conditions.