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Title:A randomized crossover trial on the acute cardiovascular demands during flywheel exercise
Authors:Zubac, Damir (Author)
Ivančev, Vladimir (Author)
Valić, Zoran (Author)
Pišot, Rado (Author)
Meulenberg, Cécil J. W. (Author)
Trozic, Irhad (Author)
Goswami, Nandu (Author)
Šimunič, Boštjan (Author)
Language:English
Tipology:1.01 - Original Scientific Article
Organisation:Logo ZRS Koper - Science and Research Centre Koper
Abstract:In a randomized crossover trial, we examined whether age plays a role in the mean arterial pressure (MAP) response during a vigorous flywheel exercise of varying load. We hypothesized that the magnitude of increase in the MAP during the flywheel exercise would increase in proportion to advancing age, thereby imposing a significant challenge to the cardiovascular system. A total of 30 participants of both sexes (age range from 20%55 y, 37% women) underwent a detailed medical examination, and their maximal oxygen uptake was determined. They performed a squat exercise (2 sets % 7 repetitions) on a flywheel ergometer at three randomly assigned moments of inertia set at 0.025, 0.05, and 0.075 kg m2, while the cardiovascular response was continuously recorded via a Task force monitor. Compared to the resting values, robust rises in the MAP were observed during all three flywheel loads, reaching the highest value of 179 % 4 mmHg (p = 0.001) during the highest load. In parallel, the cardiac index (cardiac output normalized by the body surface area) was two-fold greater during all the flywheel loads compared to rest, and at a high load, exclusively, the total peripheral resistance increased by 11% (p = 0.001). The rise in heart rate compensated for a load-dependent drop in the stroke index (stroke volume normalized by the body surface area). In our study population, no correlations were observed between the relative increase in the MAP and the participants% age for the three flywheel loads. The present findings suggest that the larger moments of inertia impose a substantial burden to the cardiovascular system, without apparent associated age-differences of the relative magnitude of MAP rise throughout the exercise.
Keywords:yo-yo exercise, oxygen uptake, muscles loading, blood pressure, krvni tlak, flow mediate dilation
Year of publishing:2021
COBISS_ID:69151235 Link is opened in a new window
UDC:796.012.1:612
ISSN on article:1664-042X
DOI:10.3389/fphys.2021.665462 Link is opened in a new window
Note:Nasl. z nasl. zaslona; Opis vira z dne 2. 7. 2021; Soavtorji: Vladimir Ivančev, Zoran Valić , Rado Pišot, Cécil J. W. Meulenberg, Irhad Trozić, Nandu Goswami, Boštjan Šimunič;
Views:258
Downloads:170
Files:.pdf PDF - Presentation file, download (1,85 MB)
URL URL - Source URL, visit https://www.frontiersin.org/articles/10.3389/fphys.2021.665462/full?&utm_source=Email_to_authors_&utm_medium=Email&utm_content=T1_11.5e1_author&utm_campaign=Email_publication&field=&journalName=Frontiers_in_Physiology&id=665462
 
Journal:Front. physiol.
Frontiers Research Foundation
 
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Rights:© 2021 Zubac, Ivančev, Valić, Pišot, Meulenberg, Trozić, Goswami and Šimunič.
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Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:25.06.2021

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