Exploring associations between parental and peer variables, personal variables and physical activity among adolescents: a mediation analysis

BMC Public Health

Anna Timperio¹  Ilse De Bourdeaudhuij²  Greet Cardon²  Jo Salmon¹  Alison Carver¹  Jenny Veitch¹  Maïté Verloigne² 

[1] Centre for Physical Activity and Nutrition Research (C-PAN), Deakin University, Melbourne, Australia;Department of Movement and Sport Sciences, Ghent University, Ghent, Belgium

关键词: Accelerometer;    Barriers;    Self-efficacy;    Peers;    Parents;    Adolescent;    Physical activity;   

Others  :  1126891
DOI  :  10.1186/1471-2458-14-966

 received in 2014-07-15, accepted in 2014-09-16,  发布年份 2014

【 摘 要 】

Background

This study aimed to investigate how parental and peer variables are associated with moderate- to-vigorous intensity physical activity (MVPA) on week- and weekend days among Australian adolescents (13-15y), and whether perceived internal barriers (e.g. lack of time), external barriers (e.g. lack of others to be physically active with) and self-efficacy mediated these associations.

Methods

Cross-sectional data were drawn from the Health, Eating and Play Study, conducted in Melbourne, Australia. Adolescents (mean age = 14.11 ± 0.59 years, 51% girls) and one of their parents completed a questionnaire and adolescents wore an ActiGraph accelerometer for a week (n = 134). Mediating effects of perceived barriers and self-efficacy were tested using MacKinnon’s product-of-coefficients test based on multilevel linear regression analyses.

Results

Parental logistic support was positively related to MVPA on weekdays (τ = 0.035) and weekend days (τ = 0.078), peer interest (τ =0.036) was positively related to MVPA on weekdays, and parental control (τ = −0.056) and parental concern (τ = −0.180) were inversely related to MVPA on weekdays. Internal barriers significantly mediated the association between parental logistic support and MVPA on weekdays (42.9% proportion mediated). Self-efficacy and external barriers did not mediate any association.

Conclusions

Interventions aiming to increase adolescents’ MVPA should involve parents, as parental support may influence MVPA on weekdays by reducing adolescents’ perceived internal barriers. Longitudinal and experimental research is needed to confirm these findings and to investigate other personal mediators.

【 授权许可】

   
2014 Verloigne et al.; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

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