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Related Experiment Videos

Maximal and submaximal exercise performance at altitude

C S Fulco1, P B Rock, A Cymerman

  • 1Thermal and Mountain Medicine Division, U.S. Army Research Institute of Environmental Medicine, Natick, MA 01760-5007, USA.

Aviation, Space, and Environmental Medicine
|August 26, 1998
PubMed
Summary
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Elite athletes experience reduced maximal aerobic power at altitude, but submaximal exercise performance can improve with acclimatization. Fitness level is the biggest factor in performance variability at altitude.

Area of Science:

  • Sports Science
  • Environmental Physiology
  • Exercise Physiology

Background:

  • Reviews four decades of exercise performance data from altitude research and competitive events.
  • Highlights significant interindividual variation in exercise responses to altitude.

Purpose of the Study:

  • To analyze factors contributing to variability in maximal and submaximal exercise performance at altitude.
  • To assess the impact of altitude exposure duration and individual fitness on performance.

Main Methods:

  • Qualitative assessment of fitness level, pre-exposure altitude, gender, and exposure duration.
  • Analysis of elite athlete performance in timed, maximal-effort events.

Main Results:

  • Pre-altitude fitness level is the primary driver of performance variability.

Related Experiment Videos

  • Maximal aerobic power (VO2max) decreases at altitudes above 580m and does not improve with extended exposure without fitness changes.
  • Submaximal exercise performance is impaired at altitude, proportional to elevation and duration.

    • Conclusions:

    • Submaximal exercise performance impairment at altitude is linked to elevation and duration.
    • Continued altitude exposure can improve submaximal performance without increasing VO2max.
    • Anaerobic performance and sprints are unaffected if muscle mass is maintained.