Skip Navigation LinksHome > January 2008 - Volume 22 - Issue 1 > Ultrafine and Fine Particulate Matter Inhalation Decreases E...
Journal of Strength & Conditioning Research:
doi: 10.1519/JSC.0b013e31815ef98b
Original Research

Ultrafine and Fine Particulate Matter Inhalation Decreases Exercise Performance in Healthy Subjects

Rundell, Kenneth W; Caviston, Renee

Collapse Box

Abstract

The purpose of this study was to investigate effects of PM1 (particulate matter with aerodynamic diameter 0.02-2 μm) inhalation on exercise performance in healthy subjects. Inhalation of internal combustion-derived PM is associated with adverse effects to the pulmonary and muscle microcirculation. No data are available concerning air pollution and exercise performance. Fifteen healthy college-aged males performed 4 maximal effort 6-min cycle ergometer trials while breathing low or high PM1 to achieve maximal work accumulation (kJ). Low PM1 inhalation trials 1 and 2 were separated by 3 days; then after a 7 day washout, trials 3 and 4 (separated by 3 days) were done while breathing high PM1 generated from a gasoline engine; CO was kept below 10 ppm. Lung function was done after trial 1 to verify nonasthmatic status. Lung function was normal before and after low PM1 exercise. PM1 number counts were not different between high PM1 trials (336,730 ± 149,206 and 396,200 ± 82,564 for trial 3 and 4, respectively) and were different from low PM1 trial number counts (2,260 ± 500) (P < 0.0001). Mean heart rate was not different between trials (189 ± 6.0, 188 ± 7.6, 188 ± 7.6, 187 ± 7.4, for low and high PM1 trials; respectively). Work accumulated was not different between low PM1 trials (96.1 ± 9.38 versus 96.6 ± 10.83 kJ) and the first high PM1 trial (trial 3, 96.8 ± 10.65 kJ). Work accumulated in the second high PM1 trial 4, 91.3 ± 10.04 kJ) was less than in low PM1 trials 1 and 2, and high PM1 trial 3 (P = 0.004, P = 0.003, P = 0.0008; respectively). Acute inhalation of high (PM1) typical of many urban environments could impair exercise performance.

© 2008 National Strength and Conditioning Association

 

Login

Article Tools

Share

Search for Similar Articles
You may search for similar articles that contain these same keywords or you may modify the keyword list to augment your search.