Linked Life Data

12697520

Source:http://linkedlifedata.com/resource/pubmed/id/12697520

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2003-5-1
pubmed:abstractText
Orthostatic intolerance is the most serious symptom of cardiovascular deconditioning induced by microgravity exposure. In fact the neural control mechanisms of the cardiovascular system are significantly affected by this condition. Non-invasive measurement of Heart Rate Variability (HRV) have been used as a valuable tool to characterize the ability of neuroendocrine regulatory systems to modulate the cardiovascular function by analyzing the spontaneous fluctuations of arterial pressure and heart period on a beat-to-beat basis. Concerning this, conflicting results have been reported on the heart rate and blood pressure variability responses during exposure to microgravity. These differences seem to be due to different experimental designs used. Moreover, the different behavior of normal subjects in response to orthostatic stress after HD, i.e. Symptomatic (S) or Non Symptomatic (NS), could play some roles in producing these discrepancies. Therefore the aim of the present study was to examine BP and HR variability before and after 4 hours of HD in two groups of normal subjects with and without symptoms of orthostatic intolerance to orthostatic stress.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
S
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1077-9248
pubmed:author
pubmed:issnType
Print
pubmed:volume
7
pubmed:owner
NASA
pubmed:authorsComplete
Y
pubmed:pagination
P167-8
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Effect of 4 hours HD -6 degrees on heart rate variability in symptomatic and non symptomatic subjects.
pubmed:affiliation
Centro Biomedicina Spaziale, Fisiopatologia Medica, Dip. Medicina Interna, Università di Roma "Tor Vergata".
pubmed:publicationType
Journal Article