PMID: 6539691Jan 1, 1984Paper

Cardiorespiratory effects of respiratory protective devices during exercise in well-trained men

European Journal of Applied Physiology and Occupational Physiology
V LouhevaaraJ Jaakkola

Abstract

The effects of a filtering device, an air-line breathing apparatus and a self-contained breathing apparatus ( SCBA ) on pulmonary ventilation, oxygen consumption and heart rate were studied in 12 well-trained firemen aged 21-35 years. Their average maximal oxygen consumption (VO2 max) was 64.9 ml X min-1 X kg-1. Sequential tests without and with the respirator were performed on a treadmill. The continuous test contained five components, each of which lasted 5 min: sitting at rest, walking at 20%, 40%, and 60% of the individual VO2 max, and recovery sitting. During the higher submaximal work levels and recovery, ventilation, heart rate, and oxygen consumption in particular increased more with respirators than without them. At the highest work level the increments in oxygen consumption caused by the respirators were 13%, (8.7 ml X min-1 X kg-1), 7% (4.4 ml X min-1 X kg-1), and 20% (12.7 ml X min-1 X kg-1) of VO2 max. All three respirators hampered respiration, resulting in hypoventilation. The additional effort of breathing and the weight of the apparatus (15 kg with the SCBA ) increased the subjects' cardiorespiratory strain so clearly that the need for rest periods and the individual's work capacity when the respirators are wor...Continue Reading

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Citations

Jan 1, 1984·International Archives of Occupational and Environmental Health·J SmolanderJ Jaakkola
Jan 1, 1985·International Archives of Occupational and Environmental Health·V LouhevaaraJ Jaakkola
Jan 1, 1986·European Journal of Applied Physiology and Occupational Physiology·V LouhevaaraT Tuomi
Jan 1, 1984·European Journal of Applied Physiology and Occupational Physiology·J SmolanderJ Jaakkola
Jun 23, 2009·European Journal of Applied Physiology·Chun-Jung HuangEdmund O Acevedo
Jun 12, 2012·Journal of Huazhong University of Science and Technology. Medical Sciences = Hua Zhong Ke Ji Da Xue Xue Bao. Yi Xue Ying De Wen Ban = Huazhong Keji Daxue Xuebao. Yixue Yingdewen Ban·Man Qiu, Sheng Wang
May 17, 2005·Applied Ergonomics·P A BrühwilerM Camenzind
Mar 12, 2003·Applied Ergonomics·E A den Hartog, R Heus
Jan 1, 1986·Ergonomics·V LouhevaaraT Tuomi
Nov 23, 2011·Ergonomics·Aitor CocaW Jon Williams
Mar 15, 2005·Journal of Occupational and Environmental Hygiene·Jonathan Kaufman, Sherri Hastings
Mar 15, 2006·Journal of Occupational and Environmental Hygiene·David M CarettiFrank Koh
Jan 31, 2009·Journal of Occupational and Environmental Hygiene·Siddharth BansalSilverio Santiago
Mar 28, 2013·Journal of Occupational and Environmental Hygiene·Sheri BelafskyStephen A McCurdy
Nov 19, 2005·Canadian Journal of Applied Physiology = Revue Canadienne De Physiologie Appliquée·Neil D EvesStewart R Petersen
Nov 5, 2010·Scandinavian Journal of Medicine & Science in Sports·S S CheungT M McLellan
Jul 3, 1999·Journal of Occupational and Environmental Medicine·R WilliamsonB W Webbon
Nov 8, 2017·High Altitude Medicine & Biology·Yongsuk SeoJung-Hyun Kim
Feb 6, 2010·Journal of Occupational and Environmental Medicine·Philip HarberSamantha Wu

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