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Time-efficient intervention to improve older adolescents' cardiorespiratory fitness: Findings from the 'Burn 2 Learn' cluster randomised controlled trial

Lubans, DR, Smith, JJ, Eather, N, Leahy, AA, Morgan, PJ, Lonsdale, C, Plotnikoff, RC, Nilsson, M, Kennedy, SG, Holliday, EG, Weaver, N, Noetel, M, Shigeta, TT, Mavilidi, MF, Valkenborghs, SR, Gyawali, P, Walker, FR, Costigan, Sarah and Hillman, CH 2020, Time-efficient intervention to improve older adolescents' cardiorespiratory fitness: Findings from the 'Burn 2 Learn' cluster randomised controlled trial, British Journal of Sports Medicine, pp. 1-9, doi: 10.1136/bjsports-2020-103277.

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Title Time-efficient intervention to improve older adolescents' cardiorespiratory fitness: Findings from the 'Burn 2 Learn' cluster randomised controlled trial
Author(s) Lubans, DR
Smith, JJ
Eather, N
Leahy, AA
Morgan, PJ
Lonsdale, C
Plotnikoff, RC
Nilsson, M
Kennedy, SG
Holliday, EG
Weaver, N
Noetel, M
Shigeta, TT
Mavilidi, MF
Valkenborghs, SR
Gyawali, P
Walker, FR
Costigan, SarahORCID iD for Costigan, Sarah orcid.org/0000-0003-2566-3276
Hillman, CH
Journal name British Journal of Sports Medicine
Start page 1
End page 9
Total pages 9
Publisher BMJ
Place of publication London, Eng.
Publication date 2020-12-21
ISSN 0306-3674
1473-0480
Keyword(s) aerobic fitness
exercise
intervention effectiveness
physical activity
physical fitness
Summary BackgroundCardiorespiratory fitness (CRF) is an important marker of current and future health status. The primary aim of our study was to evaluate the impact of a time-efficient school-based intervention on older adolescents’ CRF.MethodsTwo-arm cluster randomised controlled trial conducted in two cohorts (February 2018 to February 2019 and February 2019 to February 2020) in New South Wales, Australia. Participants (N=670, 44.6% women, 16.0±0.43 years) from 20 secondary schools: 10 schools (337 participants) were randomised to the Burn 2 Learn (B2L) intervention and 10 schools (333 participants) to the control. Teachers in schools allocated to the B2L intervention were provided with training, resources, and support to facilitate the delivery of high-intensity interval training (HIIT) activity breaks during curriculum time. Teachers and students in the control group continued their usual practice. The primary outcome was CRF (20 m multi-stage fitness test). Secondary outcomes were muscular fitness, physical activity, hair cortisol concentrations, mental health and cognitive function. Outcomes were assessed at baseline, 6 months (primary end-point) and 12 months. Effects were estimated using mixed models accounting for clustering.ResultsWe observed a group-by-time effect for CRF (difference=4.1 laps, 95% CI 1.8 to 6.4) at the primary end-point (6 months), but not at 12 months. At 6 months, group-by-time effects were found for muscular fitness, steps during school hours and cortisol.ConclusionsImplementing HIIT during curricular time improved adolescents’ CRF and several secondary outcomes. Our findings suggest B2L is unlikely to be an effective approach unless teachers embed sessions within the school day.Trial registration numberAustralian New Zealand Clinical Trials Registry (ACTRN12618000293268).
Notes In Press
Language eng
DOI 10.1136/bjsports-2020-103277
Indigenous content off
Field of Research 09 Engineering
11 Medical and Health Sciences
13 Education
HERDC Research category C1 Refereed article in a scholarly journal
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30146870

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.