Multilevel Physical Activity Intervention for Low Income Public Housing Residents

项目摘要 在过去的25年里，体力活动与几种慢性病标志物有关， 无数的研究已经测试了改善久坐人群身体活动的干预措施。大多数这些 干预研究试图通过改变个体水平的驱动因素来改善身体活动行为 比如积极的动机、态度和自我效能感。不幸的是，这些改变的努力 在最初的干预期之后，活动水平往往无法维持。这种缺乏的一个可能原因是， 可持续性是对促进体育活动的环境因素重视不够。 因此，注意力正在转向更复杂的环境和社会对身体活动的贡献， 目的是确定多层次战略，以便更好地针对需要帮助的群体采取干预措施。很少测试 改变环境水平以增加身体活动存在于文献中。注重干预措施， 环境水平，正如最近的评论以及医学研究所的报告所呼吁的那样， 提供长期可持续的变化，这是改变低收入人群的身体活动所需的。 该项目旨在测试一种新的多层次，多组件包，以增加中等强度的物理 公屋居民的活动水平。我们的目标是评估一个 干预包侧重于环境水平，以产生中等体力活动的变化 在公屋居民中。此外，我们还将评估经过有效性测试的 个人级别的电子健康电话程序，以进一步改变中等强度的身体活动。的 本研究的设计是一项前瞻性、随机分组对照试验， 随机化单位。在这个四组、析因、整群随机对照试验中，我们将比较 单独环境干预（仅E），单独个人干预（仅I），环境加 单独干预（E+I），所有对照组。调解和节制我们的干预将是 评估。最后，我们将评估实施研究综合框架中的因素 领域，以审查未来实施的多层次的身体活动干预的主要知情人， 公共房屋发展。

Project Summary Physical activity has been associated with several chronic disease markers for the past 25 years, and countless studies have tested interventions to improve physical activity of sedentary populations. Most of these intervention studies have attempted to improve physical activity behaviors by changing individual level drivers of activity, like motivation, attitudes, and self-efficacy for being active. Unfortunately, these efforts to change activity levels are often not sustained beyond the initial intervention period. One possible cause of this lack of sustainability is that insufficient attention was paid to environmental factors that facilitate physical activity. Thus, attention is shifting to more complex environmental and social contributions to physical activity, with the aim of identifying multi-level strategies to better target interventions to groups that need help. Very few tests of changing environment levels to increase physical activity exist in the literature. A focus on interventions at environmental levels, as called for by recent reviews as well as reports from the Institute of Medicine, might provide the long-term sustainable change that is needed to change physical activity in low-income populations. This project seeks to test a new multi-level, multi-component package to increase moderate intensity physical activity levels of people living in public housing developments. Our aims are to evaluate the effects of an intervention package focused on the environment level to produce changes in moderate physical activity among public housing residents. Furthermore, we will evaluate the added effects of an efficacy-tested individual-level eHealth phone program to produce further changes in moderate intensity physical activity. The design of this study is a prospective, cluster randomized controlled trial, with housing developments as the units of randomization. In this four group, factorial, cluster randomized controlled trial, we will compare an environmental intervention alone (E only), an individual intervention alone (I only), an environmental plus individual intervention (E+I), all against a control group. Mediation and moderation of our intervention will be assessed. Lastly, we will assess factors from the Consolidated Framework for Implementation Research domains to examine future implementation of a multi-level physical activity intervention among key informants in public housing developments.