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Vigorous physical activity and carotid distensibility in young and mid-aged adults

Citation

Huynh, QL and Blizzard, CL and Raitakari, O and Sharman, JE and Magnussen, CG and Dwyer, T and Juonala, M and Kahonen, M and Venn, AJ, Vigorous physical activity and carotid distensibility in young and mid-aged adults, Hypertension Research, 38, (5) pp. 355-360. ISSN 0916-9636 (2015) [Refereed Article]

Copyright Statement

2015 The Japanese Society of Hypertension All rights reserved

DOI: doi:10.1038/hr.2015.9

Abstract

Although physical activity (PA) improves arterial distensibility, it is unclear which type of activity is most beneficial. We aimed to examine the association of different types of PA with carotid distensibility (CD) and the mechanisms involved. Data included 4503 Australians and Finns aged 26-45 years. Physical activity was measured by pedometers and was self-reported. CD was measured using ultrasound. Other measurements included resting heart rate (RHR), cardiorespiratory fitness (CRF), blood pressure, biomarkers and anthropometry. Steps/day were correlated with RHR (Australian men r = -0.10, women r = -0.14; Finnish men r = -0.15, women r = -0.11; P < 0.01), CRF and biochemical markers, but not with CD. Self-reported vigorous leisure-time activity was more strongly correlated with RHR (Australian men r = -0.23, women r = -0.19; Finnish men r = -0.20, women r=-0.13; P < 0.001) and CRF, and was correlated with CD (Australian men r = 0.07; Finnish men r = 0.07, women r = 0.08; P < 0.05). This relationship of vigorous leisure-time activity with CD was mediated by RHR independently of potential confounders. In summary, vigorous leisure-time PA but not total or less intensive PA was associated with arterial distensibility in young to mid-aged adults. Promotion of vigorous PA is therefore recommended among this population. RHR was a key intermediary factor explaining the relationship between vigorous PA and arterial distensibility.

Item Details

Item Type:Refereed Article
Keywords:artery, compliance, exercise, heart rate, lifestyle, population
Research Division:Medical and Health Sciences
Research Group:Cardiorespiratory Medicine and Haematology
Research Field:Cardiology (incl. Cardiovascular Diseases)
Objective Division:Health
Objective Group:Clinical Health (Organs, Diseases and Abnormal Conditions)
Objective Field:Cardiovascular System and Diseases
Author:Huynh, QL (Dr Quan Huynh)
Author:Blizzard, CL (Associate Professor Leigh Blizzard)
Author:Sharman, JE (Professor James Sharman)
Author:Magnussen, CG (Dr Costan Magnussen)
Author:Dwyer, T (Professor Terry Dwyer)
Author:Venn, AJ (Professor Alison Venn)
ID Code:100871
Year Published:2015
Web of Science® Times Cited:8
Deposited By:Menzies Institute for Medical Research
Deposited On:2015-06-02
Last Modified:2016-02-17
Downloads:0

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