Linked Life Data

8854708

Source:http://linkedlifedata.com/resource/pubmed/id/8854708

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1996-11-7
pubmed:abstractText
Although the importance of exercise testing has been well established, standardization of protocols is lacking. In the current study three protocols were compared with respect to respiratory and hemodynamic variables at submaximal and peak exercise. Fifteen healthy young men underwent three maximal exercise tests using the following protocols: (I) an increase of 30 Watt, every three minutes; (II) an increase of 10 Watt, every minute; (III) a continuous load increase of 10 Watt/min. Respiratory measurements were made of oxygen uptake (VO2), carbon dioxide output (VCO2), minute ventilation (VE) and tidal volume (VT). Hemodynamic measurements were made of ECG, heart rate (HR), blood pressure and stroke volume (SV). The latter variable was measured by means of electrical impedence cardiography (EIC). There were no differences in mean maximum load or peak-VO2 between protocols I, II and III. The course of SV was similar in all protocols, i.e. an increase of about 30% until 100 Watt, with a subsequent stabilization until maximum load. All other hemodynamic measurements were similar in both protocols, too. Significant differences were found in submaximal values of VO2 and VCO2. There were no differences in other gas-exchange variables at any moment during exercise. With respect to the VO2max or the hemodynamic response to exercise, any protocol can be used. For the evaluation of submaximal exercise, the protocol that has been used has to be taken into account. Differences at these levels are not related to differences in hemodynamic responses.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0962-7480
pubmed:author
pubmed:issnType
Print
pubmed:volume
46
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
293-8
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Comparison of the respiratory and hemodynamic responses of healthy subjects to exercise in three different protocols.
pubmed:affiliation
Department of Pulmonary Medicine, University Hospital VU, Amsterdam, The Netherlands.
pubmed:publicationType
Journal Article, Comparative Study