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The effects of low-volume high-intensity interval training and circuit training on maximal oxygen uptake

Birkett, Stefan T.; Nichols, Simon; Sawrey, Richard; Gleadall-Siddall, Damien; McGregor, Gordon; Ingle, Lee


Stefan T. Birkett

Simon Nichols

Richard Sawrey

Gordon McGregor


Purpose: High intensity interval training (HIIT) and circuit training (CT) are popular methods of exercise, eliciting improvements in cardiorespiratory fitness (CRF). However direct comparisons of these two training methods are limited. We investigated the effects of HIIT and CT on CRF. Methods: Thirty-nine apparently healthy middle-aged participants (HIIT; mean age: 42.5 ± 12.3; "V" ̇O2max 31.5 ± 7.1(; 52% males; CT; mean age: 41.2 ± 12.9; "V" ̇O2max 31.4 ± 6.8 (; 57% males) were randomly allocated to two sessions per week of HIIT or CT over eight-weeks. HIIT performed ten 1-minute cycle-ergometry intervals at >85% HRmax, separated by ten 1-minute intervals of active recovery. The CT group performed up to 40-minutes of CT at 60-80% HRmax. CRF was measured using maximum oxygen uptake ("V" ̇O2max), ventilatory anaerobic threshold ("V" ̇O2 at VAT) and maximum oxygen pulse ("V" ̇O2 /HR). Results: "V" ̇O2max increased by 12% following HIIT (mean difference 3.9; 95% CI: 2.8 to 4.9; P

Journal Article Type Article
Journal Sport Sciences for Health
Print ISSN 1824-7490
Electronic ISSN 1825-1234
Publisher Springer (part of Springer Nature)
Peer Reviewed Peer Reviewed
Institution Citation Birkett, S. T., Nichols, S., Sawrey, R., Gleadall-Siddall, D., McGregor, G., & Ingle, L. (in press). The effects of low-volume high-intensity interval training and circuit training on maximal oxygen uptake. Sport Sciences for Health,
Keywords Cardiorespiratory fitness; Fidelity; Maximal oxygen consumption; V̇O2max; Ventilatory anaerobic threshold; HIIT
Publisher URL
Additional Information This is the accepted manuscript of an article published in Sport sciences for health, 2019. The version of record is available at the DOI link in this record.


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Copyright Statement
© The Author(s) 2019
Open Access
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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