Trial reportEnvironmental health : a global access science source2008
Breath acidification in adolescent runners exposed to atmospheric pollution: a prospective, repeated measures observational study.
Trial report in Environmental health : a global access science source, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed, 25 citations in OpenAlex.
- Air Pollutants Reduce the Physical Activity of Professional Soccer Players.International journal of environmental research and public health · 2021Article
- HSP70 as a biomarker of the thin threshold between benefit and injury due to physical exercise when exposed to air pollution.Cell stress & chaperones · 2021Review
- Respiratory Effects of Exposure to Traffic-Related Air Pollutants During Exercise.Frontiers in public health · 2020Review
- Update on the Mechanisms of Pulmonary Inflammation and Oxidative Imbalance Induced by Exercise.Oxidative medicine and cellular longevity · 2016Review
- Increase of pro-oxidants with no evidence of lipid peroxidation in exhaled breath condensate after a 10-km race in non-athletes.Journal of physiology and biochemistry · 2014Article
- The health effects of exercising in air pollution.Sports medicine (Auckland, N.Z.) · 2014Review
- Cardiorespiratory biomarker responses in healthy young adults to drastic air quality changes surrounding the 2008 Beijing Olympics.Research report (Health Effects Institute) · 2013Article
- Article
- Effect of regular aerobic exercise with ozone exposure on peripheral leukocyte populations in Wistar male rats.Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2009Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundVigorous outdoors exercise during an episode of air pollution might cause airway inflammation. The purpose of this study was to examine the effects of vigorous outdoor exercise during peak smog season on breath pH, a biomarker of airway inflammation, in adolescent athletes.
methodsWe measured breath pH both pre- and post-exercise on ten days during peak smog season in 16 high school athletes engaged in daily long-distance running in a downwind suburb of Atlanta. The association of post-exercise breath pH with ambient ozone and particulate matter concentrations was tested with linear regression.
resultsWe collected 144 pre-exercise and 146 post-exercise breath samples from 16 runners (mean age 14.9 years, 56% male). Median pre-exercise breath pH was 7.58 (interquartile range: 6.90 to 7.86) and did not change significantly after exercise. We observed no significant association between ambient ozone or particulate matter and post-exercise breath pH. However both pre- and post-exercise breath pH were strikingly low in these athletes when compared to a control sample of 14 relatively sedentary healthy adults and to published values of breath pH in healthy subjects.
conclusionAlthough we did not observe an acute effect of air pollution exposure during exercise on breath pH, breath pH was surprisingly low in this sample of otherwise healthy long-distance runners. We speculate that repetitive vigorous exercise may induce airway acidification.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.