Department of Psychology, University of South Carolina, 1512 Pendleton Street, Columbia, SC, 29208, USA.
Department of Family, Youth, and Community Sciences, University of Florida, Gainesville, FL, USA.
J Behav Med. 2021 Jun;44(3):379-391. doi: 10.1007/s10865-021-00206-0. Epub 2021 Mar 7.
The current study is a randomized controlled trial to test a novel 10-week climate-based intervention within pre-existing afterschool programs, designed to increase moderate-to-vigorous physical activity (MVPA) in underserved (low-income, minority status) middle school youth by addressing youth social developmental needs. Participants (n = 167; 56% female; 62% Black; 50% overweight/obese) enrolled in 6 middle schools were randomized to either the Connect through PLAY intervention or a wait-list control. Process evaluation measures (i.e., observations of external evaluators; staff surveys) indicated that essential elements were implemented with fidelity, and staff endorsed implementation ease/feasibility and acceptability. Regression analysis demonstrated that participation in the intervention (vs. control) was associated with an increase of 8.17 min of daily accelerometry-measured MVPA (56 min of additional weekly MVPA) at post-intervention controlling for baseline MVPA, school, gender, and weight status. The results provide support for social-motivational climate-based interventions for increasing MVPA in underserved youth that can inform future school-based health initiatives.Trial Registration: NCT03850821: https://clinicaltrials.gov/ct2/show/study/NCT03850821?term=NCT03850821&rank=1.
本研究是一项随机对照试验，旨在通过满足青少年的社会发展需求，检验一项新的 10 周基于气候的干预措施在现有课外项目中的效果，以增加服务不足（低收入、少数族裔）的中学生的中等至剧烈体力活动（MVPA）。参与者（n=167；56%为女性；62%为黑人；50%超重/肥胖）被纳入 6 所中学，随机分配到 Connect through PLAY 干预组或候补对照组。过程评估措施（即外部评估人员的观察；员工调查）表明，基本要素得到了忠实的实施，员工认可了实施的容易程度/可行性和可接受性。回归分析表明，与对照组相比，干预组（与对照组相比）在干预后每天计步器测量的 MVPA 增加了 8.17 分钟（每周额外增加 56 分钟的 MVPA），控制了基线 MVPA、学校、性别和体重状况。研究结果为基于社会动机的气候干预措施在服务不足的青少年中增加 MVPA 提供了支持，为未来的基于学校的健康倡议提供了信息。试验注册：NCT03850821：https://clinicaltrials.gov/ct2/show/study/NCT03850821?term=NCT03850821&rank=1。
