| Relationships between eupnoeic pattern of breathing and ventilatory control in man II. Early response to transient hypercapnia. | |
| | |
MedLine Citation:
|
PMID: 66039 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The individual importance of peripheral chemosensitive afferents was studied using a transient hypercapnia (inhalation of a 5% or a 10% CO2 in air gas mixture respectively during 4 or 2 breaths) in human conscious subjects chosen for their different eupnoeic ventilatory patterns. Calculation of the speed of change in end-tidal CO2 pressure in tracheal gas (sPETCO2) and of the rate of change in tidal volume (sVI) gave assessment for quantifying the sensitivity of arterial chemoreceptors to hypercapnia (sCO2=SVI/SPETCO2). Our results showed that, independently of any outside influence of the eupnoeic ventilatory pattern on the components of the chemical stimulus, sVI and sCO2 were found to be much smaller in subjects whose pattern of breathing was slow (i.e. having a large tidal volume). The possible causes of the weak importance of peripheral chemosensitive afferents in such subjects were discussed. |
| | |
Authors:
|
Y Jammes; C Guillot; C Prefaut; C Grimaud |
Related Documents
:
|
11005659 - In vivo effects of head-to-tail 3-alkylpiridinium polymers isolated from the marine spo... 4069809 - Breathing pattern of neonates during nonnutritive sucking. 20634749 - Effects of weightlifting and breathing technique on blood pressure and heart rate. 12195839 - Is there a cost-effective way to diagnose mild sleep-disordered breathing? 2993589 - Ventilatory response to intravenous methionine enkephalin in awake dogs. 9563719 - The effects of acid perfusion of the esophagus on ventilation and respiratory sensation. 20142399 - Relation between physical activity and blood pressure levels in young greek adolescents... 19389679 - Decoupled pelvis rotation in sitting: a passive motion technique that regulates buttock... 11475459 - Pneumatic bracing and total contact casting have equivocal effects on plantar pressure ... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Archives internationales de physiologie et de biochimie Volume: 84 ISSN: 0003-9799 ISO Abbreviation: Arch. Int. Physiol. Biochim. Publication Date: 1976 Dec |
Date Detail:
|
Created Date: 1977-04-28 Completed Date: 1977-04-28 Revised Date: 2008-11-21 |
Medline Journal Info:
|
Nlm Unique ID: 0405355 Medline TA: Arch Int Physiol Biochim Country: BELGIUM |
Other Details:
|
Languages: eng Pagination: 969-79 Citation Subset: IM |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adolescent Adult Carbon Dioxide Chemoreceptor Cells / physiology* Child Humans Hypercapnia / physiopathology* Middle Aged Partial Pressure Respiration* |
| Chemical | |
Reg. No./Substance:
|
124-38-9/Carbon Dioxide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Relationships between eupnoeic pattern of breathing and ventilatory control in man: I. Response to a...
Next Document: Free amino acids in sera of Cymothoidae (crustacean, isopods, parasites of fishes) and some teleosts