PMID: 1194154Oct 1, 1975Paper

Man's physiologic response to long-term work during thermal and pollutant stress

Journal of Applied Physiology
J A GlinerJ C Sutton

Abstract

Metabolic, temperature, and cardiorespiratory responses of 19 healthy males, age range 18-30 yr for one group and 40-55 yr for another, were studied during 210 minutes submaximal work at 35% Vo2 max. The subjects were exposed to four different pollutant gas mixtures at two different temperatures, 25 degrees C and 35 degrees C (relative humidity 30%). The four gas mixtures were filtered air (FA), 50 ppm carbon monoxide in filtered air (CO), 0.24 ppm peroxyacetyl nitrate in filtered air (PAN), and a combination of all three mixtures (PANCO). In the CO exposure, the heart rate was significantly greater than that observed during FA conditions (P less than 0.05). Metabolic and thermoregulatory responses to long-term work were not different in the various pollutant environments. Significant decreases in stroke volume and increases in heart rate were observed during the course of the 25 degrees C exposures with no alteration in cardiac output. Heart rates were higher during 35 degrees C exposures while cardiac output remained at the same level with a consequent further reduction in stroke output.

Citations

Jun 9, 1998·Human & Experimental Toxicology·A VyskocilS Lamy
Jul 20, 1999·Journal of Applied Physiology·K H NortonP B Raven
Feb 5, 2005·Medicine and Science in Sports and Exercise·Jonathan E WingoKirk J Cureton
Oct 8, 2014·Medicine and Science in Sports and Exercise·Joshua F LeeEdward F Coyle
May 7, 2015·Scandinavian Journal of Medicine & Science in Sports·J E Wingo
Apr 1, 1988·Environmental Health Perspectives·D G Penney
Mar 14, 2012·Exercise and Sport Sciences Reviews·Jonathan E WingoKirk J Cureton
May 8, 2008·Medicine and Science in Sports and Exercise·Andrew J LafrenzKirk J Cureton
Nov 18, 2017·Environmental Research·Thomas J LubenJennifer Richmond-Bryant

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