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Lifetime change in central and peripheral haemodynamics in relation to exercise capacity
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Clinical Epidemiology.ORCID iD: 0000-0003-2335-8542
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, UCR-Uppsala Clinical Research Center.
2019 (English)In: Clinical Physiology and Functional Imaging, ISSN 1475-0961, E-ISSN 1475-097X, Vol. 39, no 4, p. 261-275Article in journal (Refereed) Published
Abstract [en]

Exercise capacity as well as many resting central and peripheral haemodynamic features declines by age. We aimed to investigate which haemodynamic features change the most during life and which change in parallel to exercise capacity. We performed a maximal bicycle exercise test with gas exchange in 103 healthy subjects (24 young, 55 middle-aged and 24 elderly). Endothelial function, arterial compliance/stiffness and heart rate variability (HRV) were evaluated, and the myocardium and carotid arteries were investigated by ultrasound. Exercise capacity declined by almost 50% over the lifespan. Several markers reflecting arterial compliance/stiffness and HRV, as well as carotid intima-media thickness (IMT), showed lifetime impairments by >100%, while markers of LV systolic function, diastolic blood pressure and carotid artery blood flow showed only minor changes with age. The decline in exercise capacity clusters closely with many other variables measured during the exercise test, but also to resting vital capacity, left ventricular end-diastolic diameter and resting gas exchange (VO2, VCO2) to a lesser degree. Resting vital capacity was closely related to exercise capacity in the middle-aged group. We conclude that many of the resting markers of central and peripheral haemodynamics declined during life, in parallel to the decline in exercise capacity. However, some haemodynamic features, such as LF/HF ratio at HRV, stiffness index beta of the carotid artery, and heart rate reserve at the exercise test, showed a more exaggerated decline, indicating that those are not closely linked to exercise capacity.

Place, publisher, year, edition, pages
WILEY , 2019. Vol. 39, no 4, p. 261-275
Keywords [en]
ageing, blood vessels, exercise, haemodynamic, myocardium
National Category
Physiology
Identifiers
URN: urn:nbn:se:uu:diva-387719DOI: 10.1111/cpf.12570ISI: 000469979500006PubMedID: 30920132OAI: oai:DiVA.org:uu-387719DiVA, id: diva2:1331090
Available from: 2019-06-26 Created: 2019-06-26 Last updated: 2019-06-26Bibliographically approved

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Lind, LarsLampa, Erik

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