Isometric exercise versus high-intensity interval training for the management of blood pressure: a systematic review and meta-analysis

Article

Edwards, J., Decaux, A., Donaldson, J., Wiles, J. and O'Driscoll, J. 2022. Isometric exercise versus high-intensity interval training for the management of blood pressure: a systematic review and meta-analysis. British Journal of Sports Medicine. 56, pp. 506-514. https://doi.org/10.1136/bjsports-2021-104642
AuthorsEdwards, J., Decaux, A., Donaldson, J., Wiles, J. and O'Driscoll, J.
Abstract

Objective We aimed to compare the efficacy of isometric exercise training (IET) versus high-intensity interval training (HIIT) in the management of resting blood pressure (BP). Design Systematic review and meta-analysis. Data sources PubMed (MEDLINE), the Cochrane library and SPORTDiscus were systematically searched. Eligibility criteria Randomised controlled trials published between 1 January 2000 and 1 September 2020. Research trials reporting the effects of IET or HIIT on resting BP following a short-term intervention (2–12 weeks). Results 38 studies were analysed (18 IET and 20 HIIT), including 1583 (672 IET and 911 HIIT) participants, of which 612 (268 IET and 344 HIIT) were controls. IET produced significantly greater reductions in resting BP compared with HIIT with systolic, diastolic and mean BP effect sizes of 8.50 mm Hg vs 2.86 mm Hg (Q=17.10, p<0.001), 4.07 mm Hg vs 2.48 mm Hg (Q=4.71, p=0.03) and 6.46 mm Hg vs 3.15 mm Hg (Q=4.21, p=0.04) respectively. However, HIIT reduced resting heart rate significantly more than IET (3.17bpm vs 1.34bpm, Q=7.63, p=0.006). Conclusion While both modes are efficacious, IET appears to be the superior mode of exercise in the management of resting BP. However, HIIT may achieve wider physiological benefits, with greater reductions in resting heart rate.

JournalBritish Journal of Sports Medicine
Journal citation56, pp. 506-514
ISSN0306-3674
1473-0480
Year2022
PublisherBMJ Publishing Group
Accepted author manuscript
License
File Access Level
Repository staff only
Digital Object Identifier (DOI)https://doi.org/10.1136/bjsports-2021-104642
Publication dates
Online15 Dec 2021
Print11 Oct 2022
Publication process dates
Deposited19 Jul 2024
Copyright holder© 2021, The Author(s)
Copyright informationReuse of this manuscript version (excluding any databases, tables, diagrams, photographs and other images or illustrative material included where a another copyright owner is identified) is permitted strictly pursuant to the terms of the Creative Commons Attribution-Non Commercial 4.0 International
Additional information

This article has been accepted for publication in British Journal of Sports Medicine, 2021 following peer review, and the Version of Record can be accessed online at http://dx.doi.org/10.1136/bjsports-2021-104642

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