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Related Experiment Videos

Endurance running performance in athletes with asthma.

W Freeman1, C Williams, M G Nute

  • 1Department of Physical Education and Sports Science, University of Technology, Loughborough, Leicestershire, UK.

Journal of Sports Sciences
|January 1, 1990
PubMed
Summary

Endurance athletes with asthma can achieve high VO2max and competitive performance. Despite potential ventilation limits, they adapt by sustaining higher percentages of VO2max, enabling success with proper management.

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Area of Science:

  • Exercise Physiology
  • Sports Medicine
  • Pulmonary Medicine

Background:

  • Asthma is a common condition affecting athletes, potentially impacting exercise performance.
  • Understanding the physiological responses to exercise in asthmatic athletes is crucial for optimizing training and competition.

Purpose of the Study:

  • To assess maximal and submaximal exercise responses in endurance-trained male runners with asthma.
  • To correlate laboratory findings with real-world half-marathon performance.
  • To investigate the relationship between airflow obstruction and exercise capacity in this population.

Main Methods:

  • Laboratory assessments of maximal oxygen uptake (VO2max) and maximal ventilation (VEmax) during exercise.
  • Measurement of forced expiratory volume in 1 s (FEV1) to quantify airflow obstruction.

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  • Correlation analysis between physiological parameters and half-marathon race pace and intensity.

    • Main Results:

    • Asthmatic athletes demonstrated high VO2max and VEmax, positively correlated with airflow obstruction.
    • Half-marathon performance was strongly correlated with VO2max and, more significantly, with running velocity at 2 mmol l-1 blood lactate.
    • Athletes utilized a high percentage of VO2max during the race, linked to their lactate threshold intensity.

    Conclusions:

    • Mild to moderate asthma does not preclude high endurance fitness and competitive performance in runners.
    • Athletes with more severe obstruction may have reduced VEmax and VO2max but adapt by sustaining higher %VO2max at lower blood lactate levels.
    • Appropriate training and medication allow asthmatic athletes to compete successfully at high levels.