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The Effect of Exercise Training Intensity on VO2max in Healthy Adults: An Overview of Systematic Reviews and Meta-Analyses
Crowley, Emmet Powell, Cormac Carson, Brian P. Davies, Robert W.
Crowley, Emmet
Powell, Cormac
Carson, Brian P.
Davies, Robert W.
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EPub Date
Publication Date
2022-02-24
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Article - VoR
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Abstract
This study aimed to evaluate systematic reviews and meta-analyses that have examined the effect of exercise training on VO2max in healthy individuals at different intensities. Five databases were searched: EBSCOhost, MEDLINE/PubMed, SPORTDiscus, Web of Science, and Google Scholar. Eligibility criteria for selecting reviews included systematic reviews and meta-analyses of healthy adults that examined the effect of lower intensity training (LIT) and/or high intensity training (HIT) on VO2max. Eleven reviews met the eligibility criteria. All reviews were of moderate-to-very strong methodological quality. The included reviews reported data from 179 primary studies with an average of 23 ± 10 studies per review. All reviews included in this overview showed that exercise training robustly increased VO2max at all intensities. Three meta-analyses that compared LIT versus HIT protocols on VO2max reported small/moderate beneficial effects for HIT over LIT; however, the beneficial effects of HIT on VO2max appear to be moderated by training variables other than intensity (e.g., training impulse, interval length, training volume, and duration) and participants’ baseline characteristics (e.g., age and fitness levels). Overall, evidence from this overview suggests that the apparent differences between LIT and HIT protocols on VO2max were either small, trivial, or inconclusive, with several methodological considerations required to standardise research designs and draw definitive conclusions.
Citation
Crowley, E., Powell, C., Carson, B. P., & W Davies, R. (2022). The effect of exercise training intensity on VO2max in healthy adults: An overview of systematic reviews and meta-analyses. Translational Sports Medicine, 9310710. https://doi.org/10.1155/2022/9310710
Publisher
Hindawi
Journal
Translational Sports Medicine
Research Unit
DOI
10.1155/2022/9310710
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PubMed Central ID
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Article
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Series/Report no.
ISSN
EISSN
2573-8488