- Title
- Mediators of aggression in a school-based physical activity intervention for low-income adolescent boys
- Creator
- Wade, Levi; Smith, Jordan J.; Duncan, Mitch J.; Lubans, David R.
- Relation
- ARC.FT140100399 http://purl.org/au-research/grants/arc/FT140100399
- Relation
- Mental Health and Physical Activity Vol. 14, Issue March 2018, p. 39-46
- Publisher Link
- http://dx.doi.org/10.1016/j.mhpa.2017.12.006
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2018
- Description
- Objective: The present study examined the effect of a school-based multicomponent physical activity intervention on aggression in adolescent males from low-income areas, and explored potential mediators of change in aggression. Methods: Participants were adolescent males (N = 361; 12.7 ± 0.5 years) enrolled in the ‘Active Teen Leaders Avoiding Screen-time’ cluster RCT. Self-report measures for aggression, perceived strength and recreational screen-time were collected at baseline and 8-months. The effect of the intervention on aggression was tested using multi-level linear regression and potential mediators (i.e., screen-time and perceived strength) were explored using a product-of-coefficients test. Results: There was no significant intervention effects for aggression (C [SE] = -0.038 [0.044], p = .384) or perceived strength (A [SE] = -0.0 [0.0], p = .884). However, a statistically significant effect was found for screen-time (A [SE] = -0.160 [0.04], p= <0.01). Changes in screen-time significantly mediated changes in aggression at post-test (AB [SE] = -0.021 [0.009], 95% CI = -0.042 to -0.005). Conclusion: Limiting recreational screen-time may help to reduce aggression in adolescent boys. Interventions targeting adolescents' recreational screen-time should examine their ‘flow-on’ effects on externalising behaviours in adolescent populations.
- Subject
- youth; mental health; externalizing; behaviour; fitness; resistance training
- Identifier
- http://hdl.handle.net/1959.13/1466369
- Identifier
- uon:47514
- Identifier
- ISSN:1755-2966
- Rights
- © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
- Language
- eng
- Full Text
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