Linked Life Data

9342799

Source:http://linkedlifedata.com/resource/pubmed/id/9342799

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1997-12-5
pubmed:abstractText
The fast initial increase in ventilation at the start of exercise is generally assumed to be of reflex origin (exercising limbs) and/or caused by a 'feedforward' mechanism increasing breathing via brainstem respiratory centres or cortical areas controlling respiratory muscles. We wanted to test whether this ventilatory increase is in part a learned response which can be modified. Eleven subjects did two 20 min low-intensity arm-cranking exercise bouts on eight different days. Seven subjects were assigned to the experimental group which performed exercise paired with an 1.5 L external dead space. Before and after their eight exercise 'training'-days, these subjects did the same exercise without dead space. At the beginning of the first post-training exercise test (without dead space), the ventilatory increase at the start of exercise (sum of the first four breaths) was significantly increased (31.1 +/- 4.1 L . min-1) compared to the pre-training test session (24.4 +/- 3.9 L . min-1). No significant change was observed in the control group. We conclude that part of the ventilatory increase at the start of exercise can be modulated and might possibly be a learned response.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0034-5687
pubmed:author
pubmed:issnType
Print
pubmed:volume
109
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
219-29
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Modulation of the ventilatory increase at the onset of exercise in humans.
pubmed:affiliation
Swiss Federal Institute of Technology Zurich, Switzerland.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't