David M Stieb1, Robin Shutt, Lisa Marie Kauri, Gail Roth, Mieczyslaw Szyszkowicz, Nina A Dobbin, Li Chen, Marc Rigden, Keith Van Ryswyk, Ryan Kulka, Branka Jovic, Marie Mulholland, Martin S Green, Ling Liu, Guillaume Pelletier, Scott A Weichenthal, Robert E Dales. 1. Population Studies Division, Health Canada, Vancouver, British Columbia and Ottawa, Ontario (Dr Stieb, Dr Shutt, Dr Kauri, Dr Szyszkowicz, Dr Chen, Jovic, Dr Liu, Dr Dales), School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario (Dr Stieb), British Columbia Ministry of Environment and Climate Change Strategy, Prince George, British Columbia (Ms Roth), Air Health Science Division, Health Canada, Vancouver, British Columbia and Ottawa, Ontario (Ms Dobbin, Mr Van Ryswyk, Mr Kulka, Dr Weichenthal), Hazard Identification Division, Health Canada, Ottawa, Ontario (Mr Rigden, Dr Pelletier), University of Ottawa Heart Institute, Ottawa, Ontario (Ms Mulholland, Dr Green), Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, Quebec (Dr Weichenthal), and Department of Medicine, University of Ottawa, Ottawa, Ontario (Dr Dales), Canada.
Abstract
OBJECTIVE: The aim of this study was to assess cardiorespiratory effects of air pollution in older adults exercising outdoors in winter. METHODS: Adults 55 years of age and older completed daily measurements of blood pressure, peak expiratory flow and oximetry, and weekly measurements of heart rate variability, endothelial function, spirometry, fraction of exhaled nitric oxide and urinary oxidative stress markers, before and after outdoor exercise, for 10 weeks. Data were analyzed using linear mixed effect models. RESULTS: Pooled estimates combining 2014 (n = 36 participants) and 2015 (n = 34) indicated that an interquartile increase in the Air Quality Health Index was associated with a significant (P < 0.05) increase in heart rate (0.33%) and significant decreases in forced expiratory volume (0.30%), and systolic (0.28%) and diastolic blood pressure (0.39%). CONCLUSION: Acute subclinical effects of air pollution were observed in older adults exercising outdoors in winter.
OBJECTIVE: The aim of this study was to assess cardiorespiratory effects of air pollution in older adults exercising outdoors in winter. METHODS: Adults 55 years of age and older completed daily measurements of blood pressure, peak expiratory flow and oximetry, and weekly measurements of heart rate variability, endothelial function, spirometry, fraction of exhaled nitric oxide and urinary oxidative stress markers, before and after outdoor exercise, for 10 weeks. Data were analyzed using linear mixed effect models. RESULTS: Pooled estimates combining 2014 (n = 36 participants) and 2015 (n = 34) indicated that an interquartile increase in the Air Quality Health Index was associated with a significant (P < 0.05) increase in heart rate (0.33%) and significant decreases in forced expiratory volume (0.30%), and systolic (0.28%) and diastolic blood pressure (0.39%). CONCLUSION: Acute subclinical effects of air pollution were observed in older adults exercising outdoors in winter.
Authors: Osnat Wine; Alvaro Osornio Vargas; Sandra M Campbell; Vahid Hosseini; Charles Robert Koch; Mahdi Shahbakhti Journal: Int J Environ Res Public Health Date: 2022-01-28 Impact factor: 3.390
Authors: Richard Evoy; Laurel Kincl; Diana Rohlman; Lisa M Bramer; Holly M Dixon; Perry Hystad; Harold Bae; Michael Barton; Aaron Phillips; Rachel L Miller; Katrina M Waters; Julie B Herbstman; Kim A Anderson Journal: PLoS One Date: 2022-06-28 Impact factor: 3.752