Linked Life Data

6372426

Source:http://linkedlifedata.com/resource/pubmed/id/6372426

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1984-6-7
pubmed:abstractText
Inward leakage in a respiratory protective device may constitute a health hazard. The pressure demand system causes a slightly positive pressure in the facepiece throughout the breathing cycle, so that any insufficient seal in such a system will result in an outward leakage. One question is whether this positive pressure will influence work capacity. Five subjects worked until exhaustion on a bicycle ergometer with four different breathing equipments: two masks with positive pressure (0.5 kPa and 0.8 kPa) and two mouthpieces without positive pressure, one control and one with high resistance. No difference in endurance time was found. Heart rate, oxygen consumption, rated perceived exertion and blood lactate at breaking point did not show any significant changes. The high resistance mouthpiece, -1.1 kPa to +1.3 kPa, at breaking point, did reduce minute ventilation by 21% and end tidal PCO2 was increased by 16% without any influence on work performance.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0002-8894
pubmed:author
pubmed:issnType
Print
pubmed:volume
45
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
177-81
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Physiological effects of pressure demand masks during heavy exercise.
pubmed:publicationType
Journal Article