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[Effect of ozone on physical performance capacity].

J Linder1, D Herren, C Monn

  • 1Institut für Hygiene und Arbeitsphysiologie, Eidg. Technische Hochschule, Zürich.

Sozial- Und Praventivmedizin
|January 1, 1987
PubMed
Summary

High ozone exposure significantly impairs exercise performance in healthy individuals, reducing maximal efforts and shifting the anaerobic threshold. This is likely due to breathing difficulties caused by bronchial constriction.

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Area of Science:

  • Environmental science
  • Exercise physiology
  • Respiratory medicine

Context:

  • Ozone is a harmful air pollutant.
  • Exposure to ozone can occur during outdoor activities.
  • Understanding ozone's effects on human health and performance is crucial.

Purpose:

  • To investigate the impact of varying ozone concentrations on exercise performance and physiological responses in healthy adults.
  • To determine the relationship between ozone exposure and exercise capacity.

Summary:

  • Twelve healthy men and twelve healthy women underwent maximal exercise testing on a bicycle ergometer in a climate chamber under controlled ozone concentrations (0, 0.06, and 0.12 ppm).
  • Exercise performance decreased significantly at higher ozone levels, characterized by reduced maximal efforts and a lower anaerobic threshold.

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  • Participants reported increased breathing difficulty, likely due to reflex bronchial constriction, along with symptoms like throat itching, thirst, fatigue, and eye irritation.

    • Impact:

    • Ozone exposure negatively affects physical performance, even in healthy individuals.
    • Findings highlight the respiratory risks associated with air pollution during physical exertion.
    • Results can inform public health guidelines regarding exercise in areas with high ozone levels.