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

项目摘要 常规体力活动不足(&lt；每周150分钟中等到剧烈的体力活动 [MVPA])与各种健康风险有关，包括增加乳房、结肠和子宫内膜的风险 癌症。近50%的美国成年人报告常规体力活动(PA)水平不足，26.6%的人报告说 报告根本没有常规的个人助理。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、参与 时间和负担)或“黑匣子”，其中主动干预组件不清楚，造成危急 可伸缩性和传播方面的障碍，并限制其对人口健康和癌症预防的影响。 增加常规PA的新干预策略需要既有效又可扩展。提供PA内部 通过基于技术的平台的发明可以通过最大限度地降低成本来解决可伸缩性和传播障碍 和资源需求；然而，当前以技术为基础的PA干预也有同样的“黑箱” 问题就像其他干预措施一样。三种简单的干预技术是有希望的候选组件 考虑开发和优化一种新的PA干预，以解决现有的可扩展性和 传播：积极情感意象(PAI)、情节式未来思考(EFT)和行动计划(AP)。Opti- MAL成分的剂量对于优化干预也很重要。在多阶段优化的指导下 战略(MOST)框架，我们将开发录音PAI、EFT和AP组件，并注册 在为期6周的因素干预中，最近活跃的(即每周150分钟的MVPA)成年人(N=192)测试不同- 不同的成分组合，不同的剂量，以及它们的假定机制，以优化一种新的，可扩展的在... 为推广PA而设计的。在目标1中，我们将确定每周会议的最佳组成部分组合 通过测试组件对每周PA的独立和交互影响来确定PA分钟指南 在为期6周的干预期间。在目标2中，我们将确定每种干预措施的机制。 通过测试(A)每个组件改变其推定机制的程度，以及(B)在每个组件的 每种机制中的SON变化都与每周PA分钟相关。这项研究将产生一种最佳的-- 高效、可扩展的录音PA干预，将定位于我们的跨学科团队 进行一项以改进和评价为重点的未来随机对照试验(RCT)。这些结果 将加快制定干预措施的进展，以促进有可能立即和 对人口健康和癌症预防的广泛影响。

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.