Effects of exercise intensity and cardiorespiratory fitness on the acute response of arterial stiffness to exercise in older adults

Maria-Christina Perissiou; Tom G Bailey; Mark Windsor; Michael C Y Nam; Kim Greaves; Anthony S Leicht; Jonathan Golledge; Christopher D Askew

doi:10.1007/s00421-018-3900-5

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Effects of exercise intensity and cardiorespiratory fitness on the acute response of arterial stiffness to exercise in older adults

Journal article

Open access

Peer reviewed

Effects of exercise intensity and cardiorespiratory fitness on the acute response of arterial stiffness to exercise in older adults

Maria-Christina Perissiou, Tom G Bailey, Mark Windsor, Michael C Y Nam, Kim Greaves, Anthony S Leicht, Jonathan Golledge and Christopher D Askew

European Journal of Applied Physiology, Vol.118(8), pp.1673-1688

2018

DOI: https://doi.org/10.1007/s00421-018-3900-5

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Abstract

pulse wave velocity

wave reflection characteristics

exercise intensity

ageing

UniSC Diversity Area - Life Stages

Purpose: Increased arterial stiffness is observed with ageing and in individuals with low cardiorespiratory fitness (VÌ‡O2peak), and associated with cardiovascular risk. Following an exercise bout, transient arterial stiffness reductions offer short-term benefit, but may depend on exercise intensity. This study assessed the effects of exercise intensity on post-exercise arterial stiffness in older adults with varying fitness levels. Methods: Fifty-one older adults (72±5y) were stratified into fitness tertiles (VÌ‡O2peak:low-, 22.3±3.1; mid-, 27.5±2.4 and high-fit 36.3±6.5mL.kg-1.min-1). In a randomised order, participants underwent control (no-exercise), moderate-intensity continuous exercise (40% of peak power output; PPO), and higher-intensity interval exercise (70% of PPO) protocols. Pulse wave velocity (PWV), augmentation index (AIx75) and reflection magnitude (RM) were assessed at rest and during 90 min of recovery following each protocol. Results: After control, delta PWV increased over time (P<0.001) and delta RM was unchanged. After higher-intensity interval exercise, delta PWV (P<0.001) and delta RM (P<0.001) were lower to control in all fitness groups. After moderate-intensity continuous exercise, delta PWV was not different to control in low-fit adults (P=0.057), but was lower in the mid- and higher-fit older adults. Post-exercise AIx75 was higher to control in all fitness groups (P=0.001). Conclusions: In older adults, PWV increases during seated rest and this response is attenuated after higher-intensity interval exercise, regardless of fitness level. This attenuation was also observed after moderate-intensity continuous exercise in adults with higher, but not lower fitness levels. Submaximal exercise reveals differences in the arterial stiffness responses between older adults with higher and lower cardiorespiratory fitness.

Details

Title: Effects of exercise intensity and cardiorespiratory fitness on the acute response of arterial stiffness to exercise in older adults
Authors: Maria-Christina Perissiou (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Tom G Bailey (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Mark Windsor (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Michael C Y Nam (Author) - Sunshine Coast Hospital and Health Service
Kim Greaves (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Anthony S Leicht (Author) - James Cook University
Jonathan Golledge (Author) - James Cook University
Christopher D Askew (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Publication details: European Journal of Applied Physiology, Vol.118(8), pp.1673-1688
Publisher: Springer
Date published: 2018
DOI: 10.1007/s00421-018-3900-5
ISSN: 1439-6319
Copyright note: Copyright © Springer-Verlag GmbH Germany, part of Springer Nature 2018. The author's accepted version is reproduced here in accordance with the publisher's copyright policy. The final publication is available at www.springerlink.com
Grants: National Centre of Research Excellence to Improve Management of Peripheral Arterial Disease, 1000967, National Health and Medical Research Council (Australia, Canberra) - NHMRC
Developing improved management for peripheral artery diseases, 1117061, National Health and Medical Research Council (Australia, Canberra) - NHMRC
Organisation Unit: Faculty of Science, Health, Education and Engineering; UniSC Clinical Trials Centre; School of Health and Sport Sciences - Legacy; School of Health - Sports & Exercise Science; School of Health and Behavioural Sciences - Legacy
Language: English
Record Identifier: 99450751402621
Output Type: Journal article

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