Exercise intervention does not reduce the likelihood of VO2max underestimation in older adults with hypertension

Schaun, Gustavo Z., Alberton, Cristine L., Brizio Gomes, Maria Laura, Mendes, Graciele F., Häfele, Mariana S., Andrade, Luana S., Campelo, Paula C., Ferreira, Hector K., Oppelt, Lorena L., Galliano, Leony M., Alves, Leonardo, de Ataides, Vinícius A., Carmona, Marco A., Lázaro, Rafael, Pinto, Stephanie S. and Wilhelm, Eurico N. (2022) Exercise intervention does not reduce the likelihood of VO2max underestimation in older adults with hypertension. Journal of Sports Sciences. pp. 1-7. ISSN 0264-0414 (In Press)

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Official URL: https://doi.org/10.1080/02640414.2022.2081403

Abstract

The present study aimed to investigate whether training status would influence the capacity of a verification phase (VER) to confirm maximal oxygen uptake (VO2max) of a previous graded exercise test (GXT) in individuals with hypertension. Twelve older adults with hypertension (8 women) were recruited. Using a within-subject design, participants performed a treadmill GXT to exhaustion followed by a multistage VER both before and after a 12-wkcombined exercise training programme. Individual VO2max, respiratory exchange ratio (RER), maximal heart rate (HRmax), and rating of perceived exertion (RPE) were measured during both GXT and VER tests. Absolute and relative VO2max values were higher in VER than in GXT at baseline, but only absolute VO2max differed between bouts post-intervention (all p < 0.05). Individual VO2max comparisons revealed that 75% of the participants (9/12) achieved a VO2max value that was ≥3% during VER both before (range: +4.9% to +21%) and after the intervention (range: +3.4% to +18.8%), whereas 91.7% (11/12) of the tests would have been validated as a maximal effort if the classic criteria were employed. A 12-wk combined training intervention could not improve the capacity of older adults with hypertension to achieve VO2max during a GXT, as assessed by VER.

Item Type: Article
Additional Information: Funding Information: The authors are thankful for the administrative and funding support provided by the National Institute of Science and Technology for Health Technology Assessment (IATS/HCPA), Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil. E. N. W. was supported by the Brazilian Education Ministry Foundation CAPES (PNPD), whereas C.L.A was supported by the Brazilian National Council for Scientific and Technological Development (CNPq; conselho nacional de desenvolvimento científico e tecnológico.
Uncontrolled Keywords: Exercise testing, verification phase, oxygen consumption, blood pressure
Subjects: C600 Sports Science
Department: Faculties > Health and Life Sciences > Sport, Exercise and Rehabilitation
Depositing User: Elena Carlaw
Date Deposited: 26 Jul 2022 11:46
Last Modified: 26 Jul 2022 12:00
URI: http://nrl.northumbria.ac.uk/id/eprint/49619

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