Changing trajectory of daily physical activity levels among at-risk adolescents: influences of motivational mechanisms

BMC Public Health

Research

Allison M.Sweeney¹  Nicole Zarrett²  Jongho Moon²  Anqi Deng³ 

[1] Department of Biobehavioral and Nursing Science, College of Nursing, University of South Carolina, Columbia, USA;Department of Psychology, University of South Carolina, Columbia, USA;Department of Psychology, University of South Carolina, Columbia, USA;Behavioral Medicine Group, Department of Psychology, College of Arts and Sciences, University of South Carolina, 1330 Lady Street, Suite 400, 29201, Columbia, SC, USA;

关键词: Moderate to vigorous physical activity;    Community based intervention;    Health disparities;    Minorities;    Intrinsic motivation;   

DOI  :  10.1186/s12889-023-16949-1

 received in 2022-11-27, accepted in 2023-10-10,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundGuided by Self-Determination Theory (SDT), the purpose of this study was to determine changes in the 16-week moderate-to-vigorous physical activity (MVPA) trajectory of underserved adolescents who participated in the Connect through PLAY afterschool program intervention and the effects of changes in participating adolescents’ intrinsic and autonomous extrinsic motivations on their MVPA trajectory over the 16-week intervention.MethodsA subsample of 113 adolescents (56.64% female; 61.06% African American; average age = 11.29) provided complete data throughout the 16-week intervention were examined. Adolescents’ objective daily MVPA was measured using 7- day accelerometer data. Changes in adolescents’ intrinsic motivation and autonomous extrinsic motivation were assessed using subscales from the Intrinsic Motivation Inventory [1] and the Treatment Self-Regulation Questionnaire [2] respectively. A hierarchical linear model was built and tested to address the research aims.ResultsThe results of hierarchical linear models showed that, on average, youth daily MVPA increased 6.36 minutes in each 8-week period. Intrinsic motivation change, but not autonomous extrinsic motivation, was a positive and significant level-2 predictor of daily MVPA changes.ConclusionThe findings provide significant evidence suggesting a benefit of integrating SDT-based approaches and further suggest that nurturing intrinsic motivation can be an effective approach to supporting youth daily MVPA in under-resourced afterschool programs.Trial registrationConnect Through PLAY: A Staff-based Physical Activity Intervention for Middle School Youth (Connect). https://clinicaltrials.gov/ct2/show/NCT03732144. Registered November 6th, 2018.

【 授权许可】

CC BY   
© BioMed Central Ltd., part of Springer Nature 2023

【 图 表 】

Fig. 10