Positive Affect, Future Thinking, and Planning: Testing Brief Intervention Components to Optimize a Novel Intervention to Promote Physical Activity

项目摘要 常规体力活动水平不足（每周中度至剧烈体力活动<150分钟 [MVPA]）与各种健康风险有关，包括乳腺癌、结肠癌和子宫内膜癌的风险增加。 癌的近50%的美国成年人报告定期体育活动（PA）水平不足，26.6%的美国人报告经常体育活动（PA）水平不足。 报告说没有定期的私人助理目前大多数巴勒斯坦权力机构的干预措施都是资源密集型的（即，实施成本，特别是 喘息时间和负担）或"黑匣子"，其中主动干预组件不清楚， 可扩展性和传播的障碍，限制了它们对人口健康和癌症预防的影响。 新的干预策略，以增加定期PA需要既有效又可扩展。输送PA间- 通过基于技术的平台进行交流可以通过最小化成本来解决可扩展性和传播障碍 然而，目前以技术为基础的巴勒斯坦权力机构干预措施也有同样的"黑匣子"， 与其他干预措施一样。三种简单的干预技术是有希望的候选组成部分， 考虑开发和优化一种新的PA干预措施，以解决现有的可扩展性障碍， 传播：积极情感意象（PAI），情景未来思维（EFT）和行动计划（AP）。光学 对于优化干预，主要组分的剂量也是重要的。以多阶段优化为指导 战略（MOST）框架，我们将开发录音PAI，EFT和AP组件，并招收足够的学生。 最近活跃的（即，<150分钟/周的MVPA）成人（N = 192）在6周的析因干预中， ent组件组合，不同的剂量，以及它们的推定机制，以优化一种新的，可扩展的， 促进PA的干预。在目标1中，我们将确定每周会议组件的最佳组合 PA分钟指南通过测试每周PA组件的独立和交互作用 在6周的干预期间。在目标2中，我们将确定每种干预组合的机制。 通过测试（a）每种成分改变其假定机制的程度，以及（B）每种成分内 每个机制中的子变化与每周PA分钟相关联。该研究将导致一个最佳的- 一个有效的、可扩展的、将使我们的跨学科团队 进行未来的随机对照试验（RCT），重点是细化和评估。这些结果 将加快制定干预措施以促进巴勒斯坦权力机构的进展， 对人口健康和癌症预防产生广泛影响。

Project Summary Insufficient levels of regular physical activity (< 150 minutes/week of moderate-to-vigorous physical activity [MVPA]) are associated with various health risks, including increased risk of breast, colon, and endometrial cancers. Nearly 50% of adults in the US report insufficient levels of regular physical activity (PA), and 26.6% report no regular PA at all. Most current PA interventions are resource intensive (i.e., cost to implement, partici- pant time and burden) or “black boxes” where the active intervention components are unclear, creating critical barriers to scalability and dissemination and limiting their impact on population health and cancer prevention. Novel intervention strategies to increase regular PA need to be both effective and scalable. Delivering PA inter- ventions via technology-based platforms can address scalability and dissemination barriers by minimizing cost and resource demands; however, current technology-based PA interventions also have the same “black box” problem as other interventions. Three brief intervention techniques are promising candidate components to consider in developing and optimizing a novel PA intervention to address existing barriers to scalability and dissemination: positive affective imagery (PAI), episodic future thinking (EFT), and action planning (AP). Opti- mal component dosage is also important for optimizing an intervention. Guided by the Multiphase Optimization Strategy (MOST) framework, we will develop audio-recorded PAI, EFT, and AP components and enroll insuffi- ciently active (i.e., < 150 minutes/week of MVPA) adults (N=192) in a 6-week factorial intervention to test differ- ent component combinations, different doses, and their putative mechanisms to optimize a novel, scalable in- tervention to promote PA. In Aim 1, we will identify the optimal combination of components for meeting weekly PA minute guidelines by testing the independent and interactive effects of the components on weekly PA minutes during the 6-week intervention. In Aim 2, we will determine the mechanisms of each intervention com- ponent by testing the extent to which (a) each component changes its putative mechanism, and (b) within-per- son changes in each mechanism are associated with weekly PA minutes. The research will result in an opti- mized, audio-recorded PA intervention that is effective and scalable and will position our interdisciplinary team to conduct a future randomized controlled trial (RCT) focused on refinement and evaluation. These outcomes will accelerate progress toward developing an intervention to promote PA that has potential for immediate and broad impact on population health and cancer prevention.