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Evaluation of inert gas rebreathing for determination of cardiac output: influence of age, gender and body size
- Source :
- Hypertension Research
- Publication Year :
- 2018
- Publisher :
- Springer Science and Business Media LLC, 2018.
-
Abstract
- The aim of this study was to evaluate an inert gas rebreathing method (Innocor) for measurement of cardiac output and related haemodynamic variables and to provide robust normative data describing the influence of age, gender and body size on these variables. Four separate studies were conducted: measurement repeatability (study 1, n = 45); postural change (study 2, n = 40); response to submaximal cycling exercise (study 3, n = 20); and the influence of age, gender and body size (study 4, n = 1400). Repeated measurements of cardiac output, stroke volume and heart rate were similar, with low mean (±SD) differences (0.26 ± 0.53 L/min, 0 ± 11 mL and 2 ± 6beats/min, respectively). In addition, cardiac output and stroke volume both declined progressively from supine to seated and standing positions (P P P P
- Subjects :
- Cardiac output
Adult
Male
Aging
medicine.medical_specialty
Supine position
Body Surface Area
Physiology
Posture
Normative data
Hemodynamics
030204 cardiovascular system & hematology
Noble Gases
Article
Young Adult
03 medical and health sciences
0302 clinical medicine
Heart Rate
Reference Values
Internal medicine
Heart rate
Supine Position
Internal Medicine
medicine
Body Size
Humans
030212 general & internal medicine
Body surface area
Sex Characteristics
Sitting Position
business.industry
Reproducibility of Results
Stroke Volume
Inert gas rebreathing
Stroke volume
Middle Aged
Bicycling
Blood pressure
Standing Position
Cardiology
Female
Cardiology and Cardiovascular Medicine
business
Subjects
Details
- ISSN :
- 13484214 and 09169636
- Volume :
- 42
- Database :
- OpenAIRE
- Journal :
- Hypertension Research
- Accession number :
- edsair.doi.dedup.....78bea59bf11b90d851d7ad8d678bd584