Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1996-11-21
pubmed:abstractText
The effects of prolonged head-down bed rest on the rhythms of several parameters (blood pressure, heart rate, haematocrit, plasma renin activity (PRA), atrial natriuretic peptide (ANP) were assessed in six healthy men, aged 33 (SEM 2) years, who were submitted to bed rest for 28 days (D1-28). Systolic and diastolic blood pressure (BPs and BPd) and heart rate were measured at 0700 and 1900 hours; circulating PRA and ANP were determined from blood samples drawn at 0800, 1000, 1200, 1500, 1800 and 2200 hours before bed rest (D - 5), D1, 2, 7, 20, 27 during bed rest and post bed rest (D + 2). The BPs was the lowest at 0700 hours and increased at 1900 hours. There was a significant difference between values during all the measurements. The BPd and heart rate were lower at 0700 hours before and after bed rest and no significant difference appeared between these two values during the bed rest. The PRA and ANP concentrations were more stable during bed rest, and had not returned to original rhythmicity 2 days after bed rest. The mean daily concentration of ANP decreased during bed rest. It would seem from this study that changes occur in those rhythms during bed rest.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0301-5548
pubmed:author
pubmed:issnType
Print
pubmed:volume
73
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
536-43
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Diurnal rhythms of plasma renin activity, atrial natriuretic peptide and arterial pressure during head-down bed rest in humans.
pubmed:affiliation
Laboratoire de Physiologie de l'Environnement (GIP Exercice), Faculté de Médecine Lyon Grange-Blanche, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't