4.8 INCREASED CARDIAC WORKLOAD IN THE UPRIGHT POSTURE IN MALE SUBJECTS: NON-INVASIVE HEMODYNAMICS IN MEN VERSUS WOMEN
| Autor: | Tiit Kööbi, Jari Viik, Antti Tikkakoski, Mika Kähönen, Ilkka Pörsti, Jenni Koskela, Jukka Mustonen, Marko Uitto, Anna Tahvanainen, Pauliina Kangas |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
medicine.medical_specialty
business.industry Non invasive Hemodynamics Specialties of internal medicine Workload General Medicine 030226 pharmacology & pharmacy Surgery 03 medical and health sciences 0302 clinical medicine RC581-951 Internal medicine RC666-701 medicine Cardiology Diseases of the circulatory (Cardiovascular) system business 030217 neurology & neurosurgery |
| Zdroj: | Artery Research, Vol 16 (2016) |
| ISSN: | 1876-4401 |
| Popis: | Background: Men and women differ in the risk of cardiovascular disease, but the underlying mechanisms are not completely understood. We examined possible sex-related differences in supine and upright cardiovascular regulation. Methods: Hemodynamics were recorded from 167 men and 167 women of matching age (∼45 years) and body mass index (∼26.5 kg/m2) during passive head-up tilt. None had diabetes, cardiovascular disease other than hypertension, or antihypertensive medication. Whole-body impedance cardiography, tonometric radial blood pressure, and heart rate variability were analyzed. Results were adjusted for height, smoking, alcohol intake, mean arterial pressure, plasma lipids and glucose. Results: Supine hemodynamic differences were minor: lower heart rate (−4%) and higher stroke volume (+7.5%) in men than women (p55 years). Heart rate variability analyses showed higher low frequency to high frequency ratio in supine (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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