Associations between air pollution and cardio-respiratory physiological measures in older adults exercising outdoors
| Autor: | Robin Shutt, Martin S. Green, David M. Stieb, Mieczyslaw Szyszkowicz, Lisa Marie Kauri, Julie Andrade, Robert E. Dales, Nina A. Dobbin, Branka Jovic, Scott Weichenthal, Li Chen, Sarah Mason-Renton, Marie Mulholland, Marc Rigden, Guillaume Pelletier, Ling Liu, Isaac Luginaah |
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| Rok vydání: | 2019 |
| Předmět: |
Male
Fine particulate Health Toxicology and Mutagenesis Air pollution 010501 environmental sciences medicine.disease_cause 01 natural sciences 03 medical and health sciences 0302 clinical medicine Heart Rate Interquartile range Air Pollution Malondialdehyde Environmental health Heart rate Humans Medicine Heart rate variability 030212 general & internal medicine Exercise Air quality index Aged 0105 earth and related environmental sciences Aged 80 and over Air Pollutants business.industry Public Health Environmental and Occupational Health Cardiorespiratory fitness Environmental Exposure General Medicine Middle Aged Pollution Respiratory Function Tests Oxidative Stress Standard error Regression Analysis Female Particulate Matter business |
| Zdroj: | International Journal of Environmental Health Research. :1-14 |
| ISSN: | 1369-1619 0960-3123 |
| Popis: | We examined whether exercising indoors vs. outdoors reduced the cardio-respiratory effects of outdoor air pollution. Adults ≥55 were randomly assigned to exercise indoors when the Air Quality Health Index was ≥5 and outdoors on other days (intervention group, n = 37), or outdoors everyday (control group, n = 35). Both groups completed cardio-respiratory measurements before and after exercise for up to 10 weeks. Data were analyzed using linear mixed effect regression models. In the control group, an interquartile range increase in fine particulate matter (PM2.5) was associated with increases of 1.4% in heart rate (standard error (SE) = 0.7%) and 5.6% (SE = 2.6%) in malondialdehyde, and decreases of 5.6% (SE = 2.5%) to 16.5% (SE = 7.5%) in heart rate variability measures. While the hypothesized benefit of indoor vs. outdoor exercise could not be demonstrated due to an insufficient number of intervention days (n = 2), the study provides evidence of short-term effects of air pollution in older adults. ISRCTN #26552763. |
| Databáze: | OpenAIRE |
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