- Title
- Exploring the impact of high intensity interval training on adolescents' objectively measured physical activity: findings from a randomized controlled trial
- Creator
- Costigan, Sarah A.; Ridgers, Nicola D.; Eather, Narelle; Plotnikoff, Ronald C.; Harris, Nigel; Lubans, David R.
- Relation
- Journal of Sports Sciences Vol. 36, Issue 10, p. 1087-1094
- Publisher Link
- http://dx.doi.org/10.1080/02640414.2017.1356026
- Publisher
- Routledge
- Resource Type
- journal article
- Date
- 2018
- Description
- High Intensity Interval Training (HIIT) may be effective for accumulating VPA. However, the contribution of HIIT to overall physical activity is unknown. Our primary aim was to explore the impact of school-based HIIT on physical activity. The secondary aim was to explore within-individual changes in physical activity after participating in HIIT. Participants [n = 65; 15.8(0.6)years] were randomized to a HIIT or control group. Intervention groups participated in three HIIT sessions/week. GENEActiv accelerometers assessed objective physical activity at baseline and week-one, to detect changes in MPA and VPA. Intervention effects were examined using linear mixed models and evidence of a change in physical activity (i.e., compensation) were examined using multilevel linear regression models. The group-by-time interaction effects for MPA and VPA were small and moderate, respectively. Adjusted difference between groups for VPA was 1.70 min/day, 95%CI -1.96 to 5.36; p = 0.354; d = 0.55). Embedding HIIT within the school-day had a moderate effect on VPA compared to controls. Compensation analyses (i.e., individual level) suggested that adolescents were more active on days when they participated in HIIT. Further studies are needed to test the effects of HIIT on adolescents' physical activity over extended time periods.
- Subject
- high intensity interval training; HIIT; adolescents; vigorous physical activity; moderate physical activity
- Identifier
- http://hdl.handle.net/1959.13/1410434
- Identifier
- uon:36176
- Identifier
- ISSN:0264-0414
- Rights
- This is an Accepted Manuscript of an article published by Taylor and Francis in the Journal of Sports Sciences on 20/07/2017 available online: https://doi-org.ezproxy.newcastle.edu.au/10.1080/02640414.2017.1356026.
- Language
- eng
- Full Text
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